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César Miguel Valdez (born March 17, 1985) is a Dominican professional baseball pitcher for the Baltimore Orioles of Major League Baseball (MLB). He made his MLB debut in 2010. He previously played for the Arizona Diamondbacks, Oakland Athletics, and Toronto Blue Jays.

César Miguel Valdez (born March 17, 1985) is a Dominican professional baseball pitcher in the Oakland Athletics organization. In 2010, he played in Major League Baseball (MLB) for the Arizona Diamondbacks.