Correction: I was told not to assume that Kopech *begins* 2021 in the #MLB rotation, as the Sox won't rush him, but the team has been pleased with his progress through the offseason. Those familiar with his work in recent months believe he can be an impact starter this year. https://t.co/kmTZ6lIRbz

— Jon Morosi (@jonmorosi) February 14, 2021