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Aaron Cook Loses His Sinker, Rockies Lose To Nationals

PHILADELPHIA - OCTOBER 08:  Starting pitcher Aaron Cook #28 of the Colorado Rockies throws a pitch against the Philadelphia Phillies in Game Two of the NLDS during the 2009 MLB Playoffs at Citizens Bank Park on October 8, 2009 in Philadelphia, Pennsylvania.  (Photo by Chris McGrath/Getty Images)
Chris McGrath/Getty Images
David MartinAnalyst IJune 25, 2016

When Aaron Cook struggled in spring training, it was chalked up to a veteran working on his pitches. When he struggled in the first two starts of the season, it was chalked up to a sinker-ball pitcher needing to get into a rhythm.

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