Bello confirmed that he'll be called up from Triple-A Worcester to start for the Red Sox in Wednesday's series finale with the Rays, Katie Morrison of The Springfield Republicanreports.
Bello has been dominant this season between stops at Worcester and Double-A, compiling a 2.33 ERA, 1.04 WHIP, and 114:33 K:BB in 85 innings at the two levels. He's proven that he's ready for a shot at the big leagues, and he'll get his opportunity Wednesday at Fenway Park. Boston currently has four other starting pitchers on the injured list and another in Michael Wacha (dead arm) who is day-to-day, so Bello could get a chance to stick around beyond Wednesday if he fares well in his MLB debut.