The worlds top three go head-to-head this week at the WGC-Cadillac Championship, with Jordan Spieth, Jason Day and Rory McIlroy all in the field at Doral. McIlroy features on the PGA Tour for the third week running as he looks to bounce back from his early exit at the Honda Classic, while Spieth and Day both return to action having sat out of the Florida Swing opener.How have the trio previously fared when playing in the same event? We look back to the tournaments in 2015 where golfs big three were all involved... September 2015 - Tour ChampionshipAll three players came in to the PGA Tours season finale with a chance of FedEx Cup victory, but it was Spieth who took the title with a convincing four-stroke win at East Lake. Spieth and Day were paired together for the opening round McIlroy had made a strong start to the week but faltered over the weekend to finish 10 shots off the pace, while a final-round 68 from Day saw the Australian claim a ninth consecutive top-12 finish.But Spieth once again stole the show and claimed the £7.5million jackpot with a fifth win of the year, seeing him return back to world No 1.September 2015 - BMW ChampionshipDay threatened to post a magical 59 in Chicago on his way to a wire-to-wire victory and his fourth win in six starts, lifting the Australian above McIlroy to top of the world rankings for the first time.A par at the last saw Day open with a 10-under 61 and open a four-stroke advantage over playing partner Spieth, before he extended his lead to five with another birdie-filled 63. Day and Spieth went head-to-head at the BMW Championship Spieth, who had posted an opening-round ace, stuttered over the final rounds to end in 13th spot, as successive 69s from Day saw him cruise home with a six-shot win ahead of Daniel Berger.September 2015 - Deutsche Bank Championship A strong end to the week secured McIlroys return to world No 1, despite needing a final-hole birdie just to avoid missing the cut.Four dropped shots in a five-hole stretch during his second round saw McIlroy scrape through to the weekend, where a closing 66 parachuted him in to a tie for 29th.A first over par round in 22 for Day on Saturday ended his hopes as Rickie Fowler took the title, while Spieths dip in form continue as the two-time major champion suffered a second missed cut in as many weeks. McIlroy and Spieth were grouped with Zach Johnson for the final major of the year August 2015 - PGA ChampionshipDay held off Spieth in a final-round shoot-out at Whistling Straits to seal a three-shot triumph and a maiden major title, while a runner-up finish for the American takes him top of the world.Although a back-nine 30 from Spieth on Saturday had bolstered hopes of a third major win of the year, he had to settle for solo second as Day set a new major record for his winning score of 20 under. McIlroy struggled to make an impression when grouped with Spieth, but completed his return from injury inside the top-10 thanks to a final-round 68.June 2015 - US OpenA three-putt par at the last from Dustin Johnson allowed Spieth to emerge from Chambers Bay with a narrow one-shot win and back-to-back major titles. Spieth became the first back-to-back major winner since McIlroy the previous year After playing alongside Spieth for the first two rounds, Day recovered from collapsing through vertigo late on Friday to shoot 68 the following day and stay in contention.Day would finish the week inside the top-10 despite closing his week with a 74 as McIlroy, who struggled with his putting through the opening three rounds, joined him in a tie for ninth. May 2015 - Players ChampionshipComparisons to McIlroy were short-lived when Spieth missed the cut at TPC Sawgrass, with the American suggesting there was a long way to go before he could be talked about alongside the world No 1. The trio made up the featured group for the opening round of the Players Championship The pair had been joined by Day for the opening two rounds, with the Australian also crashing out early following a second-round 81.McIlroy couldnt find form on the greens throughout the week, eventually closing in a tie for eighth and four strokes adrift of champion Rickie Fowler. April 2015 - The MastersSpieth was likened to Tiger Woods after a record-breaking victory made him the first wire-to-wire of the Green Jacket in nearly four decades.The 21-year-old posted more birdies than any other player in Augusta history on his way to a four-shot win, as McIlroy finished six strokes off the pace despite a round-of-the-day 66 on the Sunday. Spieth claimed his maiden major title in convincing fashion Day had started strongly with an opening-round 67, but finished some 17 shots back in tied-28th after a frustrating week. March 2015 - WGC-Cadillac ChampionshipDustin Johnson picked up a first win since returning from his leave of absence on the PGA Tour, while none of the aforementioned three made any kind of challenge at the top of the leaderboard.McIlroy followed Spieth and Day in posting over par opening rounds at Doral, but bounced back with a two-under 70 to head in to the weekend eight off the pace.Back-to-back 72s left the four-time major winner tied-ninth, with Spieth a further two strokes back in tied-17th and Day 12 strokes adrift of Johnson in joint-31st. Watch the WGC-Cadillac Championship throughout the week live on Sky Sports 4 - your home of golf. Live coverage starts on Thursday from 6pm. Or watch from £6.99 without a contract, on NOW TV. Also See: Big three battle for top spot McIlroy vs Spieth comparison Golfing dates for the diary Golf live on Sky Sports 4 Philipp Grubauer Jersey . Vettel was 0.168 seconds faster than Red Bull teammate Mark Webber around the Suzuka circuit. 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Gabriel Landeskog Avalanche Jersey . - Oakland Raiders running back Rashad Jennings was speaking to a group of local high school students earlier this week when the conversation turned to the importance of being prepared when opportunities in life arise. With less than two weeks to go before Vijender Singh defends his WBO Asia Pacific belt against Francis Cheka, pre-bout trash talk is already underway. Its mostly been one-way traffic, however, with the Tanzanian promising to hit him (Vijender) in the face, bring him down and end Vijenders career.Vijender meanwhile, as he has for the course of his seven-fight long professional career, said he would let his hands do the talking.Even if it is often delivered with a wink and a nod, the bluster before the bout is a time honoured tradition of the professional circuit. Its part of an act that culminates with the post-weigh in stare down. Its meant to convince punters that if they put out cash for a ticket, they will get to see a fight between two men who dont really like each other. Yet while Cheka is doing his bit, Vijender, ahead of his first title defense, is seemingly not playing along.I just cant do the trash talk. It doesnt come naturally to me, says the 31-year-old over the phone from Manchester, where he is training. While there is no doubting the fact that he has delivered in the ring - as a perfect 7-0 record will suggest- Vijender admits hes been asked to perhaps try some verbal sparring too. My management sometimes ask me why dont I try (to trash talk). But you cant force me into doing something like that. Ive told them I want to be a good boy, he says with a laugh. Vijender wants to keep his mind on his bout.As his professional career progresses, that seems increasingly important. Vijenders first few opponents were part-time scaffolders and firemen. His more recent ones have been a definite step up in class. Vijenders last opponent Kerry Hope was a former EBU middleweight champion. Cheka, holds a minor (WBF) world title but has also fought Fedor Chudinov who formerly held the major (WBA) super middleweight title. But Vijender puts a positive spin to this. Each bout is getting steadily harder. But at the same time it becomes easier as well. For my first few bouts, I had no idea what kind of boxer my opponent was because they hadnt fought much. But now I can just type their name on Youtube and see their fights, he says.Adapting is key Its gotten a lot easier for Vijender to prepare as well. The first year will be simply about adapting, senior boxing commentator Steve Lillis had said of the Indian who made his professional debut in October last year. Professional boxing is different from anything he has done before and he will be away from anything familiar, Lillis had said.A year-and-a-half into his professional career, there are few unknowns for him in training as well. He has got used to the cold and dampness of Manchester and the solitude of training and his apartment away from family and friends.Adapting to his new surroundings was easier. Relearning his game was a lot harder. Especially after, he realized that the boxing shorthand in Lee Beards gym, was different than the one he had learned in India. Its like learning a new language. I knew boxing, but initially everything felt new to me. I didnt understand everything that Lee would tell me, recalls Vijender. When Beard would call to lead with three snap left punches - jab, jab, jab - Vijender says he didnt know what that meant.I didnt get the difference between a block and shield (you shield with your shoulder, block with your gloves). In India I thoughht a shield was the shell guard.dddddddddddd But now I get the boxing code. When Lee says stiff arm, I know what he is referring to. (he meant the defensive technique which taller boxers stick their hand out in an opponents face to keep distance).So Im learning a lot faster now, he says.Staying motivated This doesnt mean that its all been smooth sailing. Sometimes you get bored because you have been boxing for the last 20 years. You have good days where you are excited about going to the gym and training and there are days when you wonder what it is you are doing. But then you tell yourself come on, you have to do it. You have to be a warrior. And ultimately I do it because I love boxing. I cant see myself doing anything else, he says. What Vijender has also understood and come to terms with is his style as a boxer. His technical approach isnt the most crowd friendly approach but its definitely effective. Its also incredibly frustrating for his rivals.Vijender recalls how one of his sparring partners - Jimmy Kelly - nearly quit in frustration. I always had my left arm next to my body protecting me. So he couldnt catch me with a punch. Jimmy said it was ridiculous trying to box me. But that is my game. Its very technical, recalls Vijender. V (Vijender) doesnt throw a lot of punches but he is very accurate. He only needs his right hand to land once and thats enough to end the fight, says trainer Lee Beard. Indeed Vijender says professional boxing is all a matter of energy.Its all about how you control your energy. You cant box aggressively for ten rounds. If you go all out from the start, you will tire yourself out after six rounds and be in a lot of trouble in the last few four, he says. And while his sparring sessions have helped, Vijender says the best learning has come in the ring. I got a lot of experience fighting Kerry Hope. I was fighting at home so there was a lot of pressure but I got myself to focus a lot more. I told myself Stay calm and dont be in a hurry, That resolve will likely be tested once again at the Thyagaraj Stadium on December 17th .While the crowd will expect Vijender to deliver a knockout - his seventh in eight fights -- he himself is a lot more cautious. If a knockout comes thats great but my job is to get another win, he says. Sparring three times a week, Vijender is doing his best to assure himself of the win. But uncertainty is ever present in the sport. Only this past week, he was sparring someone he only calls a really strong kid. I was doing quite well when suddenly he caught me with a right hand. Boom Usse to hil gaya (it shook me). I was able to recover and finish the session but it woke me up, he says.Bahut maar khai hai maine sparring me, (Ive taken a lot of beating in sparring). Ive been cut a few times. But jitna ring ke bahar lagegi utni ring ke andar kam khun bahegi. (the more you prepare outside the ring the less you bleed inside it, he says. These arent really the fighting words that would get the blood pumping and you can almost imagine Vijenders managers shaking their heads. But he himself is not too bothered.Talking doesnt matter. Its not something I like doing. What I like is boxing. My job is to fight and Im going to be good at it, he says. ' ' '