Ross Albert Grimsley Jr.[1] (born January 7, 1950) is a former left-handed pitcher in Major League Baseball who played for the Cincinnati Reds (1971–73), Baltimore Orioles (1974–77 and 1982), Montreal Expos (1978–80) and Cleveland Indians (1980).

[2] The younger Ross Grimsley was a 1969 graduate of Frayser High School in Memphis, Tennessee, where he was an outstanding basketball and baseball player.

Flouting the team rules with long hair, he ran afoul of manager Sparky Anderson who requested after the 1973 season that Grimsley be traded.

Filing for free agency after four seasons with the Orioles,[7] he signed a six-year $1.1 million contract with the Montreal Expos on December 6, 1977.

With the Reds, he was called into manager Sparky Anderson's office and told to stop corresponding with a "witch" who had been sending him good luck charms.

[8] In an incident on September 16, 1975 at Fenway Park, Grimsley, warming up in the Orioles' bullpen, responded to Boston fans' heckling by throwing into the right field bleachers.

[10][11] He was accused by Yankees manager Billy Martin in 1977 of throwing spitball pitches using Vaseline hidden in his hair, which was usually somewhat greasy in appearance anyway due to Grimsley's penchant for not showering during winning streaks.

After his playing career ended, he was a minor league instructor for the Orioles, Atlanta Braves, Seattle Mariners and Philadelphia Phillies.