Trey Mancini selected as Orioles’ nominee for Roberto Clemente Award: ‘One of the greatest honors that I’ve received in my entire career’ September 15, 2021 by The Baltimore Sun Amid his comeback season from stage 3 colon cancer, Trey Mancini was selected as the Orioles’ nominee for the 2021 Roberto Clemente Award, the club and Major League Baseball announced Tuesday.