49ers signed WR Mohamed Sanu, formerly of the Lions, to a one-year contract.
Sanu will return to San Francisco, where he played three games in 2020 before being cut. He managed one nine-yard reception in his brief stint with the Niners before signing with Detroit later in the 2020 season. Sanu, 31, isn’t likely to make the team’s Week 1 active roster, and would only see playing time if the 49ers once again struggle with wideout injuries. It’s been downhill for the veteran since the Patriots unbelievably traded a second round draft pick for Sanu in 2019, only to see him catch 12 passes in six games.