There's no one better example of discipline and fitness than Akshay Kumar. And Sidharth Malhotra, who shared screen space with himi in 'Brothers' (2015) also believe it. For the 'Warriors' remake last year, Akki had taken on the task of training Sid in martial arts and building muscle mass.
We hear he has once again assumed the role of a mentor for the young actor as he preps for an action-comedy co-starring Jacqueline Fernandez. source says, "Sidharth is working towards attaining a particular physique since he has quite a few stunts in the film.
He is also expected to go abroad for extensive training. But at the moment, he is working out with Akshay who has a foreigner trainer for himself."