Pirates designated RHP Pat Light for assignment.
The move clears a 40-man roster spot for Edgar Santana, who has been promoted to the Pirates’ bullpen. Light, 26, was sporting a 3.76 ERA, 1.44 WHIP, and 20/15 K/BB ratio in 26 1/3 innings of relief this season at the Triple-A level. He could pass through waivers.