Jaap Stam, now there's a tough bloke for you. I remember one match when he got a bad, bad gash on his face that needed stitches, real ones and not those plasters they sometimes use for smaller cuts. He just asked the doctor to pull in the stitches right then and there because there's no way he was going to walk away from that match. The doctor, in disbelief, wanted to urge him to get off so that he can get stitches with a local sedative.
Stam just gave the doctor a stern look and told him to get on with it.