The US star recently injured his left calf muscle while filming new movie Now and shooting for the flick has had to be put on hold while he recovers.
Speaking to ET, he said: 'My calf is... it's not that baaad. It'll be fine. It's not irreversibly damaged... I was just on set and I hurt it.
'I wish I had a way better story about how I got into this Bruce Lee, Kung Fu fight with someone and 'you should see the other guy,' but unfortunately I did it to myself.'
Timberlake will be seen opposite Dan Aykroyd in new movie Yogi Bear later this month when it is released on December 17.