Oakland Athletics

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Oakland Athletics starting pitcher Jesse Chavez delivers against the Chicago White Sox in the first inning of a spring exhibition baseball game Tuesday, March 18, 2014, in Glendale, Ariz. (AP Photo/Mark Duncan)

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Chicago White Sox's Tyler Flowers (21) is greeted by Marcus Semien (5) after Flowers' solo home run against the Oakland Athletics in the third inning of a spring exhibition baseball game Tuesday, March 18, 2014, in Glendale, Ariz. (AP Photo/Mark Duncan)

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FILE - In this March 5, 2014, file photo, Oakland Athletics' Jarrod Parker throws before an exhibition spring training baseball game against the Milwaukee Brewers in Phoenix. All over spring training, there's been an outbreak of wrecked elbows and pained pitchers. The AL West champion Athletics once again lost Parker to an operation. (AP Photo/Morry Gash, File)