White Sox's Zack Collins: Motivated by doubts

Collins will have to prove he can catch at the major-league level, according to scouts, Daryl Van Schouwen of the Chicago Sun-Times reports.

Collins, the White Sox's fourth-ranked prospect according to RotoWire, says he uses those scouting assessments as fuel to improve as a catcher. The White Sox also have acknowledged the need to develop his defensive skills, having him primarily focus on that area of the game during the Arizona Fall League. There's a lot on a young catcher's plate -- blocking balls, calling pitches, controlling baserunners, framing pitches -- those are the areas Collins needs to develop over the next few seasons ahead of his 2019 ETA.