In this Friday, Feb. 20, 2014 photo, Seattle Mariners pitcher Taijuan Walker throws in a bullpen session during baseball spring training in Peoria, Ariz. James Paxton and Walker know the expectations. They understand the Mariners in many ways expect the young pitching prospects to win jobs coming out of spring training and solidify the back end of Seattle's rotation. (AP Photo/Tony Gutierrez)
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