Saif Ali Khan has been suffering from severe back spasms lately. Though his doctor RK Agarwal has advised him rest, he is putting in all his efforts to prove to be a perfect professional.

The actor had to shoot some action scenes for his upcoming film Phantom, in Patiala. Despite the pain, not wanting to cause any inconvenience to the director Kabir Khan, the actor has decided to fly down to the sets. He will soon begin shooting the high octane action scenes with co-star Katrina Kaif.

Produced by Sajid Nadiadwala, the film is based on the 26/11 attacks in Mumbai and global terrorism.

The film is scheduled to release on October 2.