In Sultan movie Salman Khan would play a 40-year old boxer.
The film produced by Yash Raj Films will be directed by Ali Abbas Zafar and will fit in the typical masala entertainer space that Salman has been famous for!
However, its confirmed that the lead actress in the movie, will be playing the role of a negative character. Salman Khan, would play the role of a wrestler named Sultan Ali Khan, and the leading actress, would also be a wrestler and share similar sporting tastes with the lead actor.
Source - @Wikipedia