The Pirates reinstated Griffin (finger) from the 60-day injured list Friday, Danny Demilio of PittsburghBaseballNow.com reports.
The 20-year-old rookie has been on the shelf for two months due to a torn sagittal band on his left ring finger, but he looked healthy while going 3-for-11 during a three-game rehab assignment. Griffin has acclimated well in his first taste of the majors this year, posting a .276/.332/.404 slash line with five homers, 20 steals, 25 RBI and 35 runs through his first 59 big-league contests. He is starting at shortstop and batting sixth in Friday's series opener against the Angels.