Mike Tyson wants to train Chris Brown for fight against Soulja Boy

The two rappers have been embroiled in a social media spat for the last week
Mike Tyson has revealed he will train Chris Brown for his fight against fellow rapper Soulja Boy.
The former world heavyweight champion boxer said he would teach Brown "every dirty trick in the book" so he can "knock out" his opponent during March's bout in Las Vegas.
In a video posted on Instagram, Tyson said: "I'm gonna teach him how to bite somebody's ear. Yeah, that's right.
Image Caption:US former heavyweight boxing champion Mike Tyson
"I'm gonna teach him every dirty trick in the book to knock you out. I'm not going to teach him how to run."
The bad blood between the two rappers began when Soulja Boy liked and left a "heart eyes" emoji on a picture of Brown's ex-girlfriend, model Karrueche Tran.
"It's going down!," he wrote on Instagram.
"Signed my contract I'm leaving the fight with $1,000,000."
Soulja Boy also claims he has former professional boxer Floyd Mayweather in his corner.
He posted a video of him and Mayweather announcing the fight, in which Mayweather is heard saying "get that money, man".
After sharing a series of posts mocking Soulja Boy's career, Brown wrote "boxing match set", adding: "Legally. Man to Man. No more dissing and no more talking. We in the ring with it. Challenge accepted."
Ms Tran, 28, also commented on the spat, calling it a "ridiculous twitter beef", adding "there is so much more out there in life".
Rapper 50 Cent says he has backed Soulja Boy, and even claims to have placed a $100,000 (£82,000) bet on his win.