Justin Zimmer (born October 23, 1992) is an American football defensive end for the Miami Dolphins of the National Football League (NFL). He played college football at Ferris State. Professionally, he has played for the New Orleans Saints, Atlanta Falcons, Cleveland Browns and the Buffalo Bills of the National Football League (NFL), in addition to the Montreal Alouettes of the Canadian Football League (CFL). College career Zimmer played four seasons for the Bulldogs, compiling a total of 216 tackles, 26 sacks, 48.5 tackles for a loss, 1 interception, 1 TD, 14 pass deflections, 9 forced fumbles, 1 fumble recovery, and 3 blocked kicks. He was a three time first-team All-GLIAC selection, a two time Division II All-American, and a three time Division II Academic All-American. Professional career Buffalo Bills Zimmer signed with the Buffalo Bills as an undrafted free agent on May 6, 2016. He was waived by the Bills on August 30, 2016. New Orleans Saints On December 13, 2016, Zimmer was signed to the New Orleans Saints' practice squad. He signed a reserve/future contract with the Saints on January 2, 2017. He was waived on September 2, 2017. Montreal Alouettes Zimmer signed with the Montreal Alouettes of the Canadian Football League on September 21, 2017 and was added to the team's practice roster. He was promoted to the active roster and appeared in the Alouettes' final game of the season, recording three tackles and one sack. Atlanta Falcons On April 17, 2018, Zimmer was signed by the Atlanta Falcons. Zimmer made the Falcons' 53-man roster, and made his regular season debut in Week 3. He was waived by the Falcons on October 2, 2018 and was re-signed to the practice squad. On December 4, 2018, Zimmer was signed to the Falcons’ 53-man roster. On August 31, 2019, Zimmer was waived by the Falcons and was signed to the practice squad the next day. Cleveland Browns On December 3, 2019, Zimmer was signed by the Cleveland Browns off the Falcons' practice squad. The Browns waived Zimmer with a non-football injury designation on July 31, 2020. Buffalo Bills (second stint) On August 16, 2020, Zimmer signed with the Buffalo Bills. He was waived on September 5, 2020, and signed to the practice squad the next day. He was elevated to the active roster on September 12 and October 19 for the team's weeks 1 and 6 games against the New