Sosa will start at third base and bat fifth in Sunday's game against the Twins.
After starting each of the previous three games at the keystone, Sosa will man the hot corner Sunday while Miguel Vargas gets a day out of the infield and serves as the club's designated hitter. Sosa has gone 1-for-12 through four games since receiving a promotion from Triple-A Charlotte, and he'll likely need to pick up the pace at the plate in order to hold down a full-time role with the big club for the balance of the season.