Which young pitcher do you think has the best chance to be a quality starter next season?
-- Shawn R., Vancouver, Wash.
Luis Castillo has every chance to have a breakout 2018 campaign. His 3-7 record in '17 is deceptive, as his other numbers show he was solid. He posted a 3.12 ERA in 15 starts (eight quality starts), with a 1.075 WHIP over 89 1/3 innings. This all came after being promoted to the big leagues from Double-A, skipping a Triple-A stint.
Beyond the numbers, Castillo is 24 years old and already seems to have command of four pitches.