MLB Pipeline’s Jonathan Mayo and Jim Callis, along with MLB.com’s Tim McMaster, chat with Rockies prospect and California League Player of the Week Colton Welker about his hot start and more (:58). They also discuss Ronald Acuna’s slow start and when the right time is for the Braves to promote their top prospect (13:35). Later, the guys look ahead to the MLB Draft focusing on Auburn Junior right-hander Casey Mize, who has separated himself at the top of draft boards this spring (26:07).


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