Mike Tyson posted fresh footage of his ferocious training routine days after saying that filming his first comeback video left him crying and in bed for a week

• Mike Tyson channeled his inner youngster in his latest training video, wearing a T-shirt with photos of himself in his heyday.
• The shirt featured three pictures of Tyson from different stages of his career.
• The 54-year-old is set to begin the next chapter of his career on November 28 when he takes on the veteran Roy Jones Jr. in an exhibition match in California.
• Last week, Tyson said his training in a video released earlier this year left him in so much pain that he was in bed for a week.

Mike Tyson channeled his inner youngster in his latest training video ahead of his much anticipated comeback, wearing a shirt with photos of himself in his heyday.

Tyson, 54, is set to fight the veteran Roy Jones Jr., 51, on November 28 in an eight-round exhibition match in California. Tyson has been teasing fans with regular clips of himself getting prepared.

In his latest clip, posted on Tuesday, Tyson again showcased his blistering hand speed and brute power on the pads, all while wearing a T-shirt with pictures of himself.

The shirt featured three images of Tyson from different stages of his career. He had showcased it in a post on Instagram three weeks ago.

Despite looking fighting fit in the new footage, Tyson recently said he spent a week in bed and was left crying earlier this year because of the pain caused by the training in one of his videos.

"Getting in shape and getting conditioned are two different animals," he said on the "Joe Rogan Experience" podcast last week. "They don't even belong in the same division of working out."

He said that while being in shape is being "able to fit your clothes," being conditioned "is being able to come outside of your soul."

"You can't do that automatically," he said, adding, "The emotional state to prepare for that is mind-boggling."

He said of the first training video, "I did that video, and I was in bed for a week."

"That was 30 seconds, and I was in bed for a week," he said. "And it's not funny, because it made me realize that this is big-boy s---."

• Read more:
• Mike Tyson was so scared of diving with a 200-pound shark that he vomited during his 'Tyson vs Jaws' Shark Week special
• The boxer who ended Mike Tyson's career in 2005 and is now a tree trimmer wants another shot at him after his fight with Roy Jones Jr.
• Roy Jones Jr. laid out his plan to beat Mike Tyson, who he says only knows how to fight like a 'pitbull pup'
• 54-year-old Mike Tyson's comeback fight against Roy Jones Jr. is 'really dangerous' for both men, former heavyweight champion George Foreman warns