The 28-year-old took to social media on Wednesday to share a heartfelt message for 49ers fans after his injury-plagued campaign. In his post, McCaffrey detailed some of his emotions about the injury before vowing to come back better when he's healed up.

The plan appears to be a heavy dose of Guerendo with the only other halfbacks on the roster being Patrick Taylor, who has 72 career carries in four seasons in the NFL, and Israel Abanikanda, who was claimed off waivers from the Jets this week.