Zimmer was the KC Royals no. 1 draft pick in 2012 (fifth overall) ahead of such players as Dodgers shortstop Corey Seager, Cardinals starting pitcher Michael Wacha, Toronto pitcher Marcus Stroman, and Astros pitcher Lance McCullers. Though he possesses top-of-the-rotation stuff by all accounts, he simply hasn’t been durable.
Kyle Zimmer has thrown no more than 108.1 innings in a single season in four years of professional baseball. That 108-inning season came in 2013 in which he compiled an unimpressive 4.32 ERA at High A and Double A.