Check GENTLY his paws to look for a splinter/sliver. If there is no foreign body in his paws, then he could have either broken or sprained/strained his leg. I'd keep an eye on him and if no better in the am, call your vet. Check his paws first though.
I'll say a prayer for him!!! Love, Happy2bgina
I'll say a prayer for him!!! Love, Happy2bgina