Thats such a bummer! I hope he has a fast recovery!
That sounds kinda like what happened to my friend in Les Mis this summer. He was playing Jean Valjean in a college production and he dislocated his shoulder on stage within the first few scenes. Their director had to go on (I dont think there was an understudy) but luckily he was able to do the show the next day.
But anyway, I just thought that was a coincidence that two Jean Valjeans were hurt in the first few minutes of the show! ahaha
I hope he recovers fast! A broken ankle and surgery is NOT fun (unfortunately Ive done that too)