Film's director Ali Abbas Zafar took to Twitter to share a picture from the practise session.
"Sultan @BeingSalmanKhan starts wrestling and mixed martial arts with @larnellstovall and team for next 2 months," he posted.
Produced by Aditya Chopra under Yash Raj Films banner, the movie is said to be based on the life of wrestler Sultan Ali Khan from Haryana. Salman will be seen in the lead role.
The leading lady of the film is yet to be announced.