Did 'Son..' for Ajay Devgn but replacing Vijay wasn't easy: Sanjay

Actor Sanjay Mishra, who replaced Vijay Raaz in 'Son of Sardaar 2', said he did the film only because he got call from Ajay Devgn. "One call from him and that's all it takes for me to say yes to him. He...has been there for me in tough times," he said. Sanjay added that replacing Vijay wasn't easy.