Shawn Patrick Sedlacek [sed′–la–check] (born June 29, 1977) is an American former professional baseball pitcher. He played part of one season in Major League Baseball (MLB), primarily as a starting pitcher, for the Kansas City Royals in 2002. Sedlacek threw a four-seam fastball, a two-seam fastball, a changeup, a slider, and a curveball.