While this veteran hurler threw righty, lefty, starter, reliever, and closer, there was one jam he couldn't get out of: 1988 Topps Picture Day. 

Card #369 on Beckett - https://marketplace.beckett.com/item/709/1988-topps-369-greg-harris_21228031

SABR Bio by Bill Nowlin - https://sabr.org/bioproj/person/greg-a-harris/

Bob Brittain cards on YouTube - https://www.youtube.com/@TTMBob64 

Switch Pitcher article from Hall of Fame - https://baseballhall.org/discover/switch-pitchers-caught-a-piece-of-history 

1981 Tides card - https://marketplace.beckett.com/item/434/1981-tidewater-tides-tcma-23-greg-harris_31782349 

Greg pitches ambidextrously! - https://www.youtube.com/watch?v=s4ozn8kaTTU 

Greg and Venditte - https://wpln.org/post/a-switch-pitcher-the-nashville-sounds-have-one-and-his-6-fingered-glove-is-awesome/