R. Madhavan's shoulder injury made him opt out from a couple of films and the disappointment raised when he announced on twitter that he won't be able to make his mark in Rohit Shetty's 'Simmba'. 

With this news, the makers of Simmba have signed Sonu Sood and he finds that this role is quite challenging. So Sonu is set to join Ranveer Singh and Sara Ali Khan in the movie as an antagonist, a grey character. This is the first ever collaboration of Rohit Shetty with Sonu Sood and the actor is quite delighted to be a part of this light-hearted mass-entertainer.

Speaking about his character in the film Sood said, "I can't reveal much about the character, but all I can say is that it is one of the most challenging roles that I will be playing."

He further adds,"I think it's exciting to have a role with multiple layers... and something which challenges you to work on it always gives a high to an actor. This is something which will need me to work a lot and study a few things. Once the film comes out, people will come to know about it. And yes, it will put me to do some kind of homework."

Presented by Reliance Entertainment the film is slated to release on December 28.