The White Sox signed left-hander Scott Olsen to a minor league contract, ESPN.com's Jerry Crasnick tweets. The deal includes a 2013 option on Olsen, a Sosnick/Cobbe client.
Olsen, 28, signed with the Pirates last offseason, but he had shoulder problems and Pittsburgh released him in May. He was a serviceable starter for the Marlins from 2006-08, when he posted a 4.65 ERA with 6.6 K/9 and 3.7 BB/9 in 559 innings. However, he struggled in 2009-10 as a member of the Nationals and hasn't had success in the Major Leagues since.