Inside Tiger Woods’ insane body transformation: How 4am workouts helped the 15-time major winner bulk up during his seven-month fight back from injury

Tiger Woods showed off his body transformation as he arrived for the Hero World Challenge last week.

The 47-year-old said that even though he couldn't swing a club, it didn't mean he wasn't hitting the weights, and it shows.

The 15-time major winner walked into the Albany Golf Club in the Bahamas for the final day of the Hero World Challenge Sunday, showing off his physique.

Woods wore gray basketball shorts and a form-fitting black Nike vest, exposing his bulging biceps as he walked to the pavilion.

And former professional and Golf Channel commentator Brandel Chamblee revealed the secret to Woods' ripped body transformation, saying on air that the 82-time PGA Tour winner has been training at dawn during his recovery.

Tiger Woods wore a form-fitting black Nike vest, which exposed his bulging biceps

The 47-year-old has undergone a body transformation during his seven-month recovery

The fifteen-time Major winner has grown throughout his career. In the photo 2013

Despite being unable to play until last week following ankle surgery in April, Woods has remained as focused and disciplined as ever.

Chamblee, while covering the first round of the Hero World Challenge, claimed that he is aware of PGA Tour players who received text messages from Woods at 4 a.m. saying, “I'm at the gym.” What are you doing to get better?'

The 20-man field tournament, which Woods is hosting, was his first competitive event since he was forced to withdraw from the Masters in April due to re-aggravation of plantar fasciitis.

Two weeks later he underwent successful surgery to fuse his subtalar, but despite being unable to get on the course, Woods has found other ways to improve his game.

Woods himself admitted during his pre-tournament press conference that he had been working on the weights as he opened up about his decision to make his comeback at last week's event.

“People don't realize I was still lifting and doing a lot of other things, along with the endurance part of it,” he told reporters. “And I hit a lot of golf balls to get Charlie [his son] ready for the event.'

And his training seems to have got him in shape for his comeback. Although Woods didn't necessarily light up the course last week, he managed an even finish for 18th.

“I think I've come a long way from being a little rusty to playing four days and throwing away a lot of rust, which was great,” Woods told Golf Channel after his final round on Sunday.

Woods finished 18th at the event in the Bahamas. Pictured with winner Scottie Scheffler

“The physicality of actually playing again and competing – I haven't done this in a while.

“It was fun to get out there with the guys and have some fun and compete.

“I wish I could have played a little cleaner, but there's always next time.”

Woods revealed he wants to host 12 tournaments in 2024 and said this seemed like a “reasonable” plan.

“I think the best scenario is maybe one tournament a month,” he said last Tuesday. 'I think that's realistic. You should maybe start with the Genesis [in February], then something in March, maybe The Players. But we have a setup now where the biggest events are one a month, so it's prepared for that.

“Now I have to prepare myself for that, I think this week is a big step in that direction.”

However, fans won't have to wait until January to see Woods back in action as he is set to battle his son Charlie, 14, at the PNC Championship next week, with the father-son duo teaming up for a fourth time at the event.