blood spots on jersey -- what to do?

[Nick_O]

The kid went out -- he was bleeding. The trainer treated him/stopped the bleeding and treated his uniform, and then the formerly bleeding player was allowed back in. The coach of the team without the bleeding player asked if his jersey was OK or if it should be changed, and that is where my question comes from. I guessed that the uniform was OK, having been treated, but could not find anything to confirm my guess.