Hastings originally joined New England as a rookie free agent on May 5 after being passed over during the NFL Draft in April.
Hastings caught 56 passes for 845 yards and six touchdowns in his final three seasons at Auburn after starting his career with the Tigers as a walk-on kicker.
Lambert signed with the Panthers on April 30 in an attempt to return to an NFL field for the first time since 2016.
Lambert was a starter at defensive end in 2014 and 2015 at Auburn after transferring from Georgia Military College.
Lambert made the Tampa Bay Buccaneers’ regular-season roster as an undrafted free agent in 2016. He played in 11 games with five starts, getting on the field for 375 defensive snaps.
Lambert sustained a dislocated wrist during the Bucs’ third preseason game in 2017 and missed the entire regular season. In 2018, Tampa Bay released Lambert at the end of the preseason, and he was out of football in 2019.
This year, Lambert played for the St. Louis BattleHawks of the XFL until the spring football league canceled its season because of the coronavirus pandemic.
The Panthers waived Lambert and cornerback Cole Luke to make room on the roster for cornerback Jameson Houston and defensive end Austin Larkin, who were signed as free agents.
Mark Inabinett is a sports reporter for Alabama Media Group. Follow him on Twitter @AMarkG1.