The Facts: McKinnon underwent surgery Tuesday on his right knee -- the same knee but a different condition that kept him out last year. He sustained a torn ACL and cartilage damage a year ago. McKinnon said it is "reassuring" his ACL and meniscus cartilage are fine. Other unspecified issues plagued him this summer when he twice attempted to return to practice.

Diehards Line: “I know what I got to do,” McKinnon said. “These guys have a good plan for me. It’s about staying mentally in it and support my teammates, and doing what I need to do to make sure I’m healthy coming back next year. It wasn’t feeling right, and there were some other things that needed to be fixed.” McKinnon made it clear he wants to be back with the 49ers next season. But in order for McKinnon to return to the 49ers next season, it seems likely the 49ers would want to seek a dramatic reduction from his scheduled $6.5 million base salary for 2020.