Hurt my arm in basketball, got elbowed?

So I play in a summer basketball league. Some larger kid ran past me and elbowed me hard in the arm (in between the shoulder and elbow). I was immediately sore, and the feeling stayed for about 36 hours. I noticed discomfort especially when flexing my muscles, clapping, and carrying laundry. It's now been about two weeks, and day to day it's fine, but I've noticed that the day after I work out, the soreness returns- it's not intense by any means, but definitely present.

Any tips guys? Comments? Thanks!

I'll check back in the morning to answer any clarifying questions you have.