5 NFL superstars who signed for their former team's rivals feat. Terrell Owens and Brett Favre

Top 3 NFL stars who joined a rival team after leaving their former team

#3 - Richard Sherman, Seattle Seahawks to San Francisco 49ers

San Francisco 49ers cornerback Richard Sherman

Richard Sherman was one of the most important pieces of the famous Legion of Boom defense for the Seattle Seahawks. His contributions helped the Seahawks win two NFC Championship games and a Super Bowl ring.

During Sherman's run with the Seahawks, the San Francisco 49ers were their biggest rivals. In a shocking turn of events, he joined the 49ers after leaving the Seahawks in free agency. He went on to help the 49ers win another NFC Championship game.

#2 - Terrell Owens, Philadelphia Eagles to Dallas Cowboys

Dallas Cowboys wide receiver Terrell Owens

Terrell Owens spent two NFL seasons with the Philadelphia Eagles, where he put up massive numbers and helped them make a Super Bowl appearance. In just 21 regular-season games with the Eagles, Owens racked up a massive 1,963 yards and 20 touchdowns. He left the Eagles after two seasons and joined their bitter rivals, the Dallas Cowboys, where he accumulated 38 touchdowns in three seasons.

#1 - Brett Favre, Green Bay Packers to Minnesota Vikings

Minnesota Vikings quarterback Brett Favre

Brett Favre is one of the greatest players in NFL history and one of the greatest Green Bay Packers of all time. He won a Super Bowl ring with the franchise and set many records along the way, but the relationship ended on a sour note. The Packers chose to move on from Favre and hand over the starting quarterback role to Aaron Rodgers.

After leaving the Packers, Favre spent one season with the New York Jets before joining the Minnesota Vikings, the Packers' divisional rivals. Favre helped the Vikings to a 12-4 record in his first season with the team and also won a playoff game before losing in the Conference Championship game.