Mangum is out of the lineup for Sunday's game against the Dodgers.
Mangum will sit for the second time in four games while the Pirates go with a starting outfield of Nick Yorke, Billy Cook and Esmerlyn Valdez from left to right. Following Oneil Cruz's recent return from the injured list, Mangum could find himself more squeezed for playing time while the Pirates look to open up room in the lineup for Jared Triolo, who will draw a 10th consecutive start Sunday.