The Boston Red Sox will be down another starting pitcher to start the season, as Lucas Giolito will begin the year on the IL.

The Boston Red Sox will open the season with three starting pitchers on the injured list after right-hander Lucas Giolito strained his left hamstring. Giolito left his first spring training start against Philadelphia on Tuesday after one inning when his hamstring tightened.

The Boston Red Sox will be without another member of their starting rotation to begin the regular season. Right-hander Lucas Giolito will start the season on the injured list with a low-grade left hamstring strain, manager Alex Cora announced Thursday. Giolito exited Tuesday's start with tightness in his hamstring and an MRI revealed the strain.