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Luis Castillo continues to impress with the Reds
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Luis Castillo - Seattle Mariners Starting Pitcher - ESPN
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Hidden Starting Pitcher Declines: Mariners' Luis Castillo
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The Cincinnati Reds have an ace in the making in Luis Castillo - Red Reporter
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Luis Castillo: How onetime Giants farmhand became the Reds' ace
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Luis Castillo - Seattle Mariners Starting Pitcher - ESPN
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Luis Castillo - Seattle Mariners Starting Pitcher - ESPN
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MLB Rookie Profile: Luis Castillo, RHP, Cincinnati Reds - Minor League Ball
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Luis Castillo is somehow the Reds' worse starter - Beyond the Box Score
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4 best destinations for Reds ace Luis Castillo ahead of 2022 MLB trade deadline
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What makes Mariners pitcher Luis Castillo so rock solid on the mound
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Luis Castillo lone Seattle Mariners player named 2023 MLB All-Star - Seattle Sports
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Luis Castillo is amazing, and teams want amazing pitchers - Red Reporter
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Mariners Ace Luis Castillo Threw 47 Consecutive Fastballs Against the White Sox