Tiger Woods was touched by the support of his peers at the WGC-Workday Championship, expressing his gratitude as he continues to recover following a car crash.

Woods was involved in a single-vehicle incident that saw his car roll "several hundred feet" on Tuesday – the 15-time major champion, who was "very fortunate" to survive, undergoing a long surgical procedure on his lower right leg and ankle.

The crash involving Woods rocked the golf and sports community, with four-time major winner Rory McIlroy among the players to have showed their support on Sunday by wearing the American great's traditional final-round outfit amid doubts over his long-term future.

After donning Woods' iconic red shirt and black pants, McIlroy – who finished tied for sixth at The Concession Golf Club in Florida – said: "Obviously things are looking a little better today than they were on Tuesday, but he's still got a ways to go. He's got a huge recovery ahead of him.

"I think it was just for everyone to show their appreciation for what he means to us out here. If there was no Tiger Woods, I just think the Tour and the game of golf would be in a worse place.

"He's meant a lot to us, he still does mean a lot to us, and I think that was just a little way to show that."

Woods then tweeted: "It is hard to explain how touching today was when I turned on the tv and saw all the red shirts.

"To every golfer and every fan, you are truly helping me get through this tough time."

American Collin Morikawa, 24, followed in the footsteps of Woods after claiming the WGC-Workday Championship by three strokes.

Winner of last year's U.S. PGA Championship, four-time PGA Tour champion Morikawa joined Woods as the only players to win a major championship and WGC event before turning 25.

Further to that feat, Morikawa also became the seventh player to clinch four or more PGA Tour tournaments – including a major – under the age of 25 after Woods, Jack Nicklaus, Jordan Spieth, Rory McIlroy, Justin Thomas and Jerry Pate.

Morikawa paid tribute to Woods, saying: "Tiger means everything to me. Yes, he had the crash and thankfully he's alright and hopefully he has a quick and great recovery, but I don't think we say thank you enough. So, I want to say thank you to Tiger." 

Collin Morikawa added the WGC-Workday Championship to his growing list of achievements after triumphing by three strokes.

Winner of last year's U.S. PGA Championship, Morikawa used a three-under-par 69 to seal victory at the star-studded World Golf Championships event in Florida ahead of Viktor Hovland, Brooks Koepka and Billy Horschel on Sunday.

Morikawa holed four birdies and just one bogey to finish 18 under for his fourth PGA Tour crown – the most by any player currently aged under 25.

He also joins Tiger Woods as the only player to win a major championship and WGC event before turning 25.

Further to that feat, Morikawa is the seventh player to claim four or more PGA Tour tournaments – including a major – under the age of 25, following in the footsteps of Woods, Jack Nicklaus, Jordan Spieth, Rory McIlroy, Justin Thomas and Jerry Pate.

The overnight leader by two strokes, Morikawa recovered from a slow start after bogeying his second hole of the final round – the 24-year-old American birdieing three of five holes before the turn as he ended the day without dropping another shot.

Norwegian star Hovland mounted a serious title charge following a five-under par 67, but he was unable to stop Morikawa.

Hovland finished tied for second alongside four-time major champion Koepka (70) and Horschel (70) at The Concession Golf Club.

McIlroy's final-round 71 saw the former world number one and four-time major winner slip down into a tie for sixth, six strokes adrift of Morikawa.

Defending champion Patrick Reed (72) ended the co-sanctioned PGA and European Tour tournament a shot further back.

Justin Thomas (71) earned a share of 15th at eight under, a stroke better off than U.S. Open champion Bryson DeChambeau (69).

It was a forgettable finish for world number one Dustin Johnson, who closed proceedings with a six-over-par 78.

The two-time tournament winner plummeted 12 positions to T54 at five over the card.

Brooks Koepka fired a six-under 66 to grab a one-stroke lead at the halfway mark of the WGC-Workday Championship.

The four-time major champion made seven birdies and one bogey at The Concession Golf Club in Florida on Friday to move into 11 under.

Koepka holds a 36-hole lead or co-lead on the PGA Tour for the eighth time in his career as he eyes a second World Golf Championships title.

The American made three straight birdies from the 15th before dropping his only shot of the round at the last.

Koepka is a stroke clear of Collin Morikawa (64), Billy Horschel (67) and Australian Cameron Smith (66).

Morikawa, last year's US PGA Championship winner, produced the equal best round of the day, with Bryson DeChambeau – who is tied for 20th – also shooting a 64.

Overnight leaders Webb Simpson and Matt Fitzpatrick both slipped back into a tie for fifth after firing 69s, sitting at nine under alongside Tony Finau (67).

Defending champion Patrick Reed carded another 68 to be at eight under alongside Kevin Kisner (69).

Rory McIlroy shot a two-under 70 to get to five under and into a tie for 13th, with Justin Thomas (66) also among that group.

A six-time WGC winner, Dustin Johnson improved on his opening-round 77, carding a 69 that sees him sitting at two over.