John Riggins played with the New York Jets from 1971-1975 and the Redskins from 1976-1985. He missed the entire 1980 season over a contract dispute.
Phoenix Suns in 1996.
Chicago Cubs
John Elway defeated every NFL team besides the Broncos, with whom he played for his entire career.
John Havliceck
Oakland Raiders
John Elway was first drafted by the Baltimore colts then went to the Denver broncos for the rest of his career
Some, but not all, include Bill Russell, John Havlicek, Karl Malone, John Stockton, and Wes Unseld.
Former NFL player Lance Alworth began his career with the San Diego Chargers in 1962 and played with the team until 1970.
John Cena held many titles in his career. He had the title for WWE United States Championship and World Tag Team Championship. He also had the title for World Heavy Weight Championship.
John Barnes was noted for playing for Watford and Liverpool. He won the First Division twice and the FA Cup twice. He ended his career with Charlton Athletic.
John Stockton spent his entire 19 year career with the Utah Jazz
John Stockton was a basketball player who played for the NBA Team Utha Jazz for the entire time of his professional career. As of 2009 he is a member of the NBA Hall of Fame.