There will be two versions of Oneil Cruz out on the diamond when the Pirates star makes his return later this season ... TMZ Sports has learned he just got a few new tattoos put on his body -- including one of himself!!
We're told the Pittsburgh shortstop -- who's been out since April while dealing with a broken leg -- wanted to commemorate his meteoric first few seasons in the Big Leagues with some tats ... so he hit up Jaime Ortiz to get the art put down.