Quotas existed and some teams didn’t bother signing black athletes.
The Reverend Dr. Martin Luther King, Jr. Day celebrations are taking place at various venues around the country including NBA arenas. King became involved in the civil rights movement in 1955. At that time, not every Major League Baseball team had Negro players. There was an unofficial quota of four Negro players on each National Football League team. No Negro could be a quarterback, a center or a middle linebacker because it was thought, Negroes lacked intelligence. George Preston Marshall would not hire Negro players for his NFL Washington team. Marshall was the last NFL owner to hire Negro players. Marshall gave in because of a threat by the Kennedy Administration to bar Marshall from moving his football team into a federally funded DC Stadium in 1962 for violating equal opportunity work requirements. When King got involved with the Montgomery, Alabama bus boycott, Negro football players could not enroll at a good number of colleges in the south. In 1947, the Cotton Bowl in Dallas wanted Penn State to play SMU in the January 1st, 1948 game but they did not want Wally Triplett to play. Penn State players said we are Penn State. Triplett played. The NFL ended an informal color barrier in 1946 as Los Angeles Coliseum officials told Cleveland Rams owner Daniel Reeves, he could move his team and sign a stadium lease there if he hired Negro players.
The Harlem Globetrotters basketball team was bigger than the National Basketball Association but in the 1950s while the team could entertain on the court in southern cities, the players could not stay at certain hotels or eat at certain restaurants. American Football League players boycotted the league’s planned 1965 New Orleans All Star game because of Jim Crow. Conditions for Negro athletes did change by the end of King’s life in 1968 but Negro athletes would continue to protest.
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