The Ryan Cook era has ended with Oakland. The Oakland A's traded their former All-Star closer to the Boston Red Sox for cash considerations or a player to be named later. The trade was announced right at the close of the non-waiver trade period.
Cook was an All-Star during his rookie season with the A's in 2012, but he has struggled the past two seasons. In 2014, he battled arm trouble and posted a 3.42 ERA in 50 innings. He struck-out 50, but he walked 22 and allowed 12 of 29 inherited runners to score. This season, Cook has been healthy, but he hasn't been able to get on-track. He struggled from the start of spring training and was optioned to the minor leagues with more than a week left in spring training.
Cook has spent the majority of the season with Triple-A Nashville, although he did appear in four games with the A's. He allowed five runs on seven hits and three walks in 4.1 innings with Oakland. With the Sounds, Cook fared better but still wasn't pitching at the level he did in 2012 and 2013. He had a 4.05 ERA and a 26:13 K:BB in 30 innings for the Sounds and he had blown five of 13 save chances.
Pending the A's return for Cook, his departure opens a spot on Oakland's 40-man roster. Cook leaves the A's with a career 2.77 ERA in 195 innings for Oakland.