Hayes (finger) has begun a rehab assignment following a three-week absence.
Hayes' power has been slow to develop throughout his career despite solid scouting reports, and his season-to-date at Triple-Indianapolis has been no exception with just three homers in 224 at-bats. The 20 doubles and eight steals point to some upside however, and he could find himself in Pittsburgh later this summer if he's able to hit well in the interim.