Bryson DeChambeau has quite literally been a big talking point after mixing swinging irons with pumping iron during lockdown.
It was very evident the eccentric American had not been putting his feet up when the PGA Tour resumed in June following a three-month hiatus due to the coronavirus pandemic.
DeChambeau teed off at the Charles Schwab Challenge with a substantially bulked-up frame after dedicating himself to an intensive daily training schedule while in quarantine.
The world number seven also put his new appearance down to a diet that includes seven protein shakes a day and a 2,000-calorie breakfast, consuming two big meals daily and "munching" inbetween.
DeChambeau has long since given his rivals food for thought with such an alternative approach to the game that earned him the 'mad scientist' nickname.
If the 26-year-old Californian can come up with a recipe for success this week, he could be a major force at the US PGA Championship.
The six-time PGA Tour champion's extra power would have drawn gasps from the galleries if spectators had been allowed in to see the distances he has been hitting the ball since the restart.
His average drive of 324.4 yards is the highest on the PGA Tour this year and can be a huge weapon, but some believe his new-found strength combined with technical adjustments may have impacted his touch game.
He returned with three consecutive top-10 finishes before winning the Rocket Mortgage Classic, but suffered a meltdown as he missed the cut at the Memorial Tournament a fortnight later.
DeChambeau was there for the weekend at the WGC-FedEx St. Jude Invitational, but finished in a tie for 30th as Justin Thomas won the title on Sunday.
Slow play and on-course tantrums have ensured DeChambeau is unlikely to ever be the most popular player on the circuit, but his drive for success has to be admired.
As does his optimism judging by a recent interview with GQ magazine.
"My goal is to live to 130 or 140. I really think that's possible now with today's technology," he said.
"I think somebody's going to do it in the next 30 or 40 years. I want humans to be better. I want them to succeed. I want to say, 'Hey, this is all of the stuff I've experienced… if it helps you, great. If it doesn't, well, let's keep working on it. Let's keep figuring stuff out."
DeChambeau must hope it is a case of the bigger, the better when he starts his quest to claim a first major title at TPC Harding Park, San Francisco on Thursday.