From personal experience, I used to fight too. Did it for about 5-6 years and loved it. There are too many “what ifs” in doing a combat sport (or anything with contact) when having a tattoo heal. If your wearing a shirt while training, the sweat and your shirt rubbing against the site can really irritate it. Even with how clean most gyms are, there is still that chance of some bozo coming in with a skin infection and your tattoo is prime breading ground for it. Just wait a week, it can be your recovery week.
