Shah Rukh Khan's knee injury happened over a year back. Rigorous shooting for his upcoming sci-fi flick RA.One has worsen the condition of his knee.
The My Name Is Khan star is in a lot of pain due to his knee damage. "He has been going through a lot of discomfort for sometime. And, hence, the doctor was called in. He has a tear in the meniscus of his left knee," a source told Mumbai Mirror.

The problem has become so severe that Mumbai based Dr Ali Irani had to visit the actor on the sets of his film. "Yes, he does have a knee problem and he will need to undergo surgery in July," the doctor told the tabloid.
SRK was earlier treated by his team Kolkata Knight Riders physiotherapist Andrew Lepius for knee problem. He has also undergone surgery for his shoulder and back as well.