The Pirates have released left-handed pitcher Scott Olsen. Olsen was signed by Pittsburgh this past winter. "We believed we were not going to have a good opportunity for Scott and made this move to allow him to find a better situation," general manager Neal Huntington said. Olsen, 27, signed a one-year contract in the offseason worth $550,000 with a club option for 2012. He sustained a hamstring injury early in spring training this season in Bradenton and never fully recovered.