more likely it is a sports injury
just about anything is possible.
is it possible that its nothing?
bacterial or fungal. only a dr is going to be able to tell you. and that is even if it is one
what kind of infection could it be? also i should ad that it is usually in the right but sometimes its in the left that it hurts.
As AJ said it could be a different infection or an injury.
i have ben dating this girl for 6 months and before we started dating i got tested to make sure i didnt have any stds and i am the only guy shes been with. i am pretty sure it isnt a STD
I don't see need for huge worry, but I do think its something you need to get checked out. It could be from football, but it could also be an infection, or something more serious.
You don't mention your sexual risk, so I can't tell you more than that.
Aj