The 49ers announced they had waived defensive lineman Akeem Spence from the active roster Tuesday. The team also announced quarterback Jacob Eason was waived from the practice squad.
He has yet to be activated, but this would suggest Elijah Mitchell is coming off the injured reserve and will return to practice Wednesday, as Kyle Shanahan indicated during a conference call Monday.
Since the 49ers are still thin at defensive tackle, it would make sense for the team to bring Spence back on the practice squad. Arik Armstead is playing the majority of snaps at defensive tackle.