Pirates' Thomas Hatch: Joining big-league bullpen

Hatch will join the Pirates on Tuesday, Jason Mackey of the Pittsburgh Post-Gazette reports.

Hatch was designated for assignment by the Blue Jays last Friday and claimed off waivers by Pittsburgh on Sunday. The 28-year-old right-hander holds a career 5.40 ERA and 45:26 K:BB in 46.2 major-league innings.