Ah, looks like Will Little debuted in the majors just a short time ago:
Monday, June 24, 2013
Major League Umpiring Debut: Will Little
Will Little made his MLB Umpiring debut Monday night during the Indians-Orioles game. Little joined Ted Barrett's crew and umpired at third base. Little worked alongside 2B Umpire Barrett, 1B Umpire Mike DiMuro and Home Plate Umpire Scott Barry, filling in for MLB regular Alfonso Marquez.