Not personally, but my ex brother in law's whip/grey x beddy, broke a bone in his right front leg and badly damaged some tendons in his right shoulder, when he clipped a stone marker in the ground, after chasing a poxy rabbit on the brow of a short, steep hillock, at 5 years old.
Properly rested him etc for months, then gradually got him back to fitness, and he was still catching plenty of rabbits, and even the odd hare now and again, even at 10 years old.
Surprisingly tough, quick little dog!! Only 20.5" tts.