By Zach Koons Sapp recently said the 34-year-old QB turned in “one of the worst workouts ever” when he threw for the Raiders in late May. View the original article to see embedded media. Colin Kaepernick’s agent disputed recent claims made by Hall of Fame defensive tackle Warren Snap that the quarterback’s workout with the Raiders was “a disaster.” Jeff Nalley, the agent of the 34-year-old signal-caller who’s attempting an NFL comeback, wrote in a text message to Mike Florio of ProFootballTalkthat he and his client received overwhelmingly positive feedback from Las Vegas after the workout in l…