McMahon, 22, is slashing .390/.419/.676 with eight home runs, 29 RBI and four steals in 32 games since being promoted to Triple-A Albuquerque.
McMahon has burst back onto the prospect scene in 2017 after a lackluster 2016 campaign. There's currently no place for him to play at the big-league level with Nolan Arenado manning the hot corner, but the Rockies may be forced to find a spot for him if he continues to rake. He can play first base and has been getting time at second base, but a trade might be his best shot at everyday at-bats.