Sanu hasn't been fantasy relevant since 2019 and the Dolphins won't really ask him to be in 2022. He'll be a dirty-work blocker and role player if he makes the roster. 

Sanu has been out since Week 9 because of the knee issue. He recorded 15 catches for 177 yards in eight regular season games. Sanu will not be a fantasy option in the NFC Championship game. 

The 49ers did the same for DBs Emmanuel Moseley and Tavon Wilson. Sanu suffered a knee sprain in Week 9 that forced him to the reserve list. He has a shot to return this week as the 49ers push for a playoff spot, but he will not be a fantasy option either way. 

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.