About two weeks ago I was playing football with my friends in the backyard, and I tackled a really scrawny kid and he went down like a ragdoll, his elbow just flopped into my upper right knee, just above where the cap is. It never really healed within the upcoming weeks but got a bit better. Then today I was fighting someone at my karate class, and I lifted that same leg to block a strike, and he hit that spot. I can barely walk now I am in pretty good pain. Should I see a doctor? Or should I just gut out my baseball games tomorrow...
Swollen and mildly bruised

I go see a doctor just in case. Or u could just try to relax that knee and not do anything.

could be fluid on it.and the doc. would have to take a needle and suck it out.i hear it hurts.or could have pulled one of the tendents and which case every time you twist it it's going to hurt.get you a knee support.

To the doctor with you. you don't want to mess around with a knee injury. This kind of injury can affect you for years to come