 Robinson's primary role was working with two young hitters, Mark McGwire (fresh from the 1984 Olympic team) and Jose Canseco, who at the time was under-performing.Robinson's lasting legacy on the game is his invention of the "Robby Pad" in 1980.The "Robby Pad", a hinged flap on the throwing shoulder of a catcher's chest protector, began seeing widespread use in the mid-1980s and can be viewed on most every catcher's chest protector from the Major Leagues to youth leagues.