I clean broke my tibia and fibula in my right leg during the 95/96 season. I think I went to the next game after coming out of hospital, and I stood on the terrace to see us promoted at Blackpool.
The day I broke it I was due to go and see us away(Peterborough I think, 2-0) and my old dear was apparently trying to get earphones to stay in my ears while I was doped up on morphine, so that I could listen to the commentary. Obviously she'd never had morphine!
So, yeah, your friend should still go