On one hand I think it is fine for him to put that tattoo on; it is his own baby.
But it is also kind of douchebaggy to do so.
Also, who cares about him? Just an athlete. He will have done things that the vast majority of us won't have done, yes. Playing in big stadiums. But will he have helped create a new suspension for the Honda Civic, designed new cars as the head engineer, defended a person that was wrongly accused of a crime, conducted laparascopic surgery using an advanced robot costing two million dollars? Probably not.
It's just a f--in game.