Rosen was selected by the San Diego Padres in the 11th round, the 327th player taken overall, and one of four Cougs to be selected this year.
The Houston Astros nabbed junior infielder Nick Tanielu in the 14th round (406th overall), the Baltimore Orioles took pitcher Tanner Chleborad in the 16th round (481st) and the New York Yankees selected senior catcher Collin Slaybaugh in the 26th round (782nd).
Rosen was the only Cougar to start all 54 games for WSU in 2014. He batted .294 with 13 doubles, two triples, five home runs and 28 RBI. His five homers led the team and tied him for eighth in the Pac-12.
"Before I left Pullman at the end of the season, I talked with the (WSU) coaching staff about my intentions to start my professional career," Rosen said in a statement released by WSU.
"I had a chance to work out for the Padres in San Diego a couple of days ago and there are some really good people in the organization. I am going to have an opportunity to play in Eugene, Ore., in the Northwest League, so this is a very exciting time."
Coug slugger Rosen headed to Eugene
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