After his boxing career, Cassidy began training fighters and has worked with two world champions, WBC light heavyweight champion Donny Lalonde and WBO middleweight champion Lonnie Bradley.
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In 2007, his son, boxing writer Bobby Cassidy Jr., wrote a play, Kid Shamrock, based on his life and boxing career.
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The cast has featured several former boxers, including John Duddy, Seamus McDonagh and Mark Breland.
Bobby Vinton | Bobby Jindal | Bobby McFerrin | Bobby Darin | Hopalong Cassidy | Bobby Fischer | David Cassidy | Bobby Womack | Eva Cassidy | Bobby Bare | Bobby Flay | Butch Cassidy and the Sundance Kid | Bobby Charlton | Bobby Thomson | Bobby Shew | Bobby Rydell | Bobby Moore | Bobby | Butch Cassidy | Bobby Riggs | Talladega Nights: The Ballad of Ricky Bobby | Bobby Watson | Bobby Troup | Bobby Shantz | Bobby Labonte | Bobby Broom | Bobby Andrews | Bobby V | Bobby Deol | Bobby Tambling |