SUBREDDIT: r/Pets
TITLE: Should I get my cat an x-ray?
POST: I have a new kitty and the little bugger loves to sprint around like a lunatic and frequently runs directly underfoot.  Well, today the worst thing happened: I stepped on the poor guy.

I had shoes on and landed on his back leg.  Nothing seems disjointed and I don't see any major swelling, but I heard a crack, he gave quite a yelp and he's definitely favouring it and being really clingy.  He's limping, but walking on it and remains playful.

Not sure if I'm overreacting as I've heard that kind of pop from a sprain in my own body before.
TL;DR: 
I stepped on my cat by accident, heard a crack in his leg, but he's walking (limping) on it.  Should I get an x-ray?