Shaun Michal Marcum (born December 14, 1981) is an American former professional baseball pitcher who played in Major League Baseball (MLB) for the Toronto Blue Jays, Milwaukee Brewers, New York Mets, and Cleveland Indians. In 2015, he became the pitching coach for the Northwestern Oklahoma State Rangers. He joined the Missouri Southern Lions as their pitching coach in August 2016. Early life Marcum was born in Kansas City, Missouri and raised in Excelsior Springs, Missouri, where he attended Excelsior Springs High School. Athletically, besides baseball, he was a two-time State Champion in wrestling and a standout football player. Marcum initially attended the University of Missouri, but transferred to Missouri State University, playing on the 2003 College World Series team as a pitcher and shortstop. In 2002, he played collegiate summer baseball with the Harwich Mariners of the Cape Cod Baseball League and was named a league all-star. Professional career Toronto Blue Jays Marcum was drafted by the Blue Jays in the third round, 80th overall, of the 2003 Major League Baseball Draft. He quickly rose through the minor leagues and made his major league debut on September 6, 2005 as a late season call-up when rosters expanded. He made his debut against the Baltimore Orioles pitching one scoreless inning, giving up a hit and one walk, with one strikeout. Marcum pitched eight innings, giving up six hits, without surrendering a run during the month of September. Marcum went 3–4 for the Blue Jays in 2006 in 21 games, including 14 starts, with an earned run average (ERA) of 5.06. In his final seven starts, he had a record of 2–1 with a 3.31 ERA. Marcum had a breakthrough season in 2007, going 12–6 with a 4.13 ERA. He struck out a total of 122 batters over 159 innings of work. He pitched 6+ scoreless innings in seven of his starts, including two instances where he pitched 6+ no-hit innings before being relieved. One of those instances was against the Boston Red Sox. In 2008, Marcum got off to a good start, going 5–4 with a 2.65 ERA and 86 strikeouts in 98 innings, but an injury, followed by a handful of weak starts sent him to Triple-A on August 23. In September he was back in the starting rotation and he seemed to have returned to form. However, on September 19, days after an abbreviated start in which he left