Lucas Giolito will make his Padres' debut on Sunday against the Mariners.

The 31-year-old right-hander will take the rotation spot vacated by the injured Matt Waldron. Giolito has made four minor league rehab starts, registering a 4.76 ERA, 1.41 WHIP and a 15/6 K/BB ratio over 17 innings. Fantasy managers may want to take a wait-and-see approach before trying to get Giolito into lineups.