The Pirates officially recalled left-hander Jeff Locke, who will start tonight's game against the San Francisco Giants at PNC Park, from Class AAA Indianapolis.
To make room on the active roster, the Pirates optioned right-hander Casey Sadler to Indianapolis.
The 26-year-old Locke started the season on the disabled list because of an oblique strain. The Pirates sent him to Indianapolis after he came off the DL. Locke, an all-star in 2013 after a great first half, struggled in the second half of the season. Part of those struggles came from a minor back injury, suffered while lifting weights, that prevented him from doing all his work between starts.
Locke had a 5.68 ERA in four starts for Indianapolis. In 19 innings he struck out 17 and walked five.
Sadler, 23, made his major league debut in a two-inning stint Friday that played a pivotal role in allowing the Pirates to come back and win. He made two appearances total with the Pirates.