A 10-day signee, Sean was a sophomore at George Fox University in 2012-13. He was 3-0 with a 3.14 ERA, and had 10 strikeouts in 14.1 innings.
Sean is a native of Milwaukie who graduated from Rex Putnam High School. He was a Three Rivers League all-star as a junior, and was the Northwest Oregon Conference's Pitcher of the Year, and a first-team all-star, as a senior. He played for the North team in the 2011 Reser's All-Star Series.
He played sparingly at George Fox as a freshman. He hit .500 (1-2) with an RBI and was 0-1 with a 27.00 ERA in one-third of an inning in his lone pitching appearance.
Last summer he also played for the Toros in WCL Portland and was 2-0 in six games, with a 6.48 ERA and 15 strikeouts in 25 innings.