The Pirates recalled right-handed pitcher Phil Irwin this morning and made official their decision to have him start today's game against the Cincinnati Reds.
To make room on the 25-man roster, the Pirates optioned infielder Josh Harrison to Class AAA Indianapolis.
Irwin is making a spot start in place of Wandy Rodriguez, who left his last start early with tightness in his left hamstring. Rodriguez said he plans to make his next scheduled start April 19.