He continued with the Pacers in the NBA, and he also played in the league for the Buffalo Braves, Boston Celtics, Kansas City Kings and San Antonio Spurs.

A 6'6" guard/forward, he then attended the University of Pittsburgh (Pitt), where he starred, and along with Mickey Martin and Kirk Bruce, Knight led the Panthers to the East Regional Finals in the 1974 NCAA Men's Division I Basketball Tournament, where they lost to eventual NCAA Champion North Carolina State, in a matchup between Knight and NCSU's David Thompson.

[2] Knight spent 11 seasons, from 1974 to 1985, in the ABA and NBA as a member of the Indiana Pacers, Buffalo Braves, Boston Celtics, Kansas City Kings, and San Antonio Spurs.

[citation needed] Having recently lost their MVP talent Bob McAdoo, the directionless Braves won only 27 games in Knight's lone season with the franchise.

[3] On November 11, 1980, Knight scored 52 points, grabbed 5 rebounds, and recorded 5 steals during a 119–113 win over the San Antonio Spurs.

He ended his career as a member of the San Antonio Spurs, where he played alongside future Hall of Famers George Gervin and Artis Gilmore for 52 games.

Knight is one of twenty-three players in NBA/ABA history to average 28 points and 10 rebounds in a season, joining the likes of Wilt Chamberlain (x7), Kareem Abdul-Jabbar (x5), Shaquille O'Neal (x5), Elgin Baylor (x4), Karl Malone (x4), Giannis Antetokounmpo (x3), Bob McAdoo (x3), Bob Pettit (x3), Oscar Robertson (x3), Anthony Davis (x2), Joel Embiid (x2), Julius Erving (x2), Elvin Hayes (x2), Spencer Haywood (x2), Dan Issel (x2), Charles Barkley, Walt Bellamy, Larry Bird, Patrick Ewing, Moses Malone, George McGinnis, George Mikan, and David Robinson.

Among these players, Knight remains the only one out of the eligible names to put up such a statline and not be inducted into the Naismith Memorial Basketball Hall of Fame.

A versatile wing player, it was commonplace for Knight to switch between playing the small forward and shooting guard positions over the course of his eleven-year professional career.

2006 led to the selection of Sheldon Williams, an undersized power forward, despite glaring needs at guard and future all-star Brandon Roy available.