Motter will start at second base and bat sixth Sunday against the Blue Jays.
With Robinson Cano (quad) due to miss another game, the versatile Motter will pick up his fourth straight start. The Mariners remain hopeful that Cano will be ready to return to the lineup Monday against the Athletics, at which point Motter's path to everyday duties will come to a close until another injury strikes one of Seattle's regulars.