The 49ers declined the 2021 contract option on Nzeocha on Friday, Eric Branch of the San Francisco Chronicle reports.
Nzeocha (quadriceps) was activated from injured reserve Saturday, Matt Maiocco of NBC Sports Bay Area reports.
Nzeocha (quadriceps) has been designated for a return from injured reserve by the 49ers on Wednesday.
The 49ers placed Nzeocha (quadriceps) on injured reserve Wednesday.
Coach Kyle Shanahan said Monday that Nzeocha (quadriceps) will likely be placed on injured reserve, Nick Wagoner of ESPN.com reports.
Nzeocha suffered a quariceps injury in Sunday's game against the Giants and didn't return, Jennifer Lee Chan of NBC Sports Bay Area reports.
Nzeocha had 10 tackles (eight solo) and an interception over 16 games as a backup in 2019.
Nzeocha recorded two tackles and an interception in Sunday's 31-17 win over the Buccaneers.
Nzeocha signed a three-year contract with the 49ers on Friday, Nick Wagoner of ESPN.com reports.
The 49ers dealt starting outside linebacker Eli Harold to the Lions Thursday, opening the door for Nzeocha to start in his place Saturday against the Colts, Matt Barrows of The Athletic reports.