Hall of Famer and former undisputed heavyweight champion Mike Tyson has given his taken on the recent loss suffered by Anthony Joshua - and what the British superstar needs to do in order to win the planned rematch with Andy Ruiz.

Last month, the boxing world was turned upside down at Madison Square Garden in New York City.

Ruiz, a massive underdog, dropped Joshua four times before the contest was waved off in the seventh round - to capture the WBO, IBO, WBA, IBF world titles.

Joshua's shock defeat has been widely compared to Tyson's highly unexpected knockout loss to Buster Douglas in 1990.

Douglas was a 42-1 underdog and his victory over Tyson, the undisputed champion at the time, is regarded by many as the biggest upset in boxing history.

Tyson, due to legal issues and Douglas getting knocked out in his very first defense, was unable to redeem himself with a rematch.

Joshua on the other hand has exercised an immediate rematch clause, and the second fight is slated for a date at the end of the year.

"He made a mistake, got hurt, and sh*t happens. He can win it back though, but his mind has to be right. He ain’t gonna win it back if his mind’s f***ed up. His mind’s gotta be right, he’s gotta dedicate his life to doing this. He’s gotta stay away from himself. When we go training, we go away in the mountains, we’re staying away from ourself and our thoughts," Tyson said on his Hotboxin’ Podcast. “

“In the mountains away from everybody, just the animals and the woods and stuff. You’re facing your demons alone. His spirits appear well to you, but in his mind… what’s going on in his mind?  This stage in life is really what makes them. Because they already have money now. Now it’s all about: Who are you? Now you’re dealing with adversity, who are you? What are you gonna do now?

“Are you gonna lay down now? And say, ‘Hey, I don’t want no more’. Do you stay down and give it up? Or do you believe in it? You got any f***ing pride, n*gga? What do you believe in? Do you believe in your ancestors? Your mother, your father, your kids? What do you believe in? What have you got to fight for? And then it’s up to him, I don’t believe in sh*t maybe. I’ve got money. I don’t believe in none of this sh*t. And that’s cool too, if it’s not who you are.”