Ryan Cook -- a right-handed pitcher out of Clovis High who made his major league debut this past summer -- was traded to the Oakland Athletics today as part of a five-player deal with the Arizona Diamondbacks.
Arizona sent Cook, right-handed pitcher Jarrod Parker and outfielder Collin Cowgill to the A's for right-hander Trevor Cahill and left-hander Craig Breslow.
"It came as an absolute shocker, my emotions are mixed. ... But I'm excited to embark on this journey with Oakland," Cook said, on the Twitter account of A's beat writer Susan Slusser of the San Francisco Chronicle (@susanslusser).
Cook -- a 27th-round draft pick by Arizona in 2008 out of USC -- went 0-1 with a 7.04 ERA in 12 appearances for the Diamondbacks in 2011.
Before his promotion to the majors, he was 1-4 with a 2.25 ERA and 50 strikeouts in 44 innings at Double-A Mobile, converting 13 of 16 save opportunities after taking over the closer's job. Cook also was 0-1 with a 2.12 ERA with six saves in 14 games with Triple-A Reno.