Konnor Griffin (finger) will begin a minor league rehab assignment with Double-A Altoona on Sunday.
Griffin is aiming to return for Friday’s series opener against the Angels when he’s first eligible to come off the injured list. The 20-year-old prodigy was hitting .276/.332/.404 with 35 runs scored, five homers, 25 RBI and 20 steals in 247 plate appearances across 59 games before landing on the injured list with a torn sagittal band in his left ring finger since early July. His return would be a massive development for Pittsburgh and he offers enough stolen base upside to be a significant fantasy contributor for the final three-plus weeks of the season.