Hancock will start Sunday's game against the Guardians, Shannon Drayer of SeattleSports.com reports.
Hancock was originally scheduled to work as the back half of a piggyback plan with Logan Gilbert on Saturday, but the former will now get the opportunity to make a traditional start during Sunday's series finale. George Kirby will be pushed back to Monday's game against the Angels as a result, and it's unknown which two of Seattle's six starters will be used in the team's next piggyback game.