Yu Darvish

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Texas Rangers starting pitcher Yu Darvish, of Japan, throws during the third inning of a spring exhibition baseball game against the Cincinnati Reds, Monday, March 10, 2014, in Suprise, Ariz. (AP Photo/Darron Cummings)

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Texas Rangers starting pitcher Yu Darvish, of Japan, throws during the first inning of a spring exhibition baseball game Monday, March 10, 2014, in Suprise, Ariz. (AP Photo/Darron Cummings)

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Texas Rangers' Yu Darvish throws before the second inning of an exhibition spring training baseball game against the Los Angeles Angels Tuesday, March 4, 2014, in Tempe, Ariz. (AP Photo/Morry Gash)

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Texas Rangers' Yu Darvish wipes his face as he heads to the dugout after the second inning of an exhibition spring training baseball game against the Los Angeles Angels, Tuesday, March 4, 2014, in Tempe, Ariz. The Angels scored two runs in the inning. (AP Photo/Morry Gash)

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Texas Rangers catcher Robinson Chirinos,right, talks to Yu Darvish during the second inning of an exhibition spring training baseball game against the Los Angeles Angels Tuesday, March 4, 2014, in Tempe, Ariz. (AP Photo/Morry Gash)

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Texas Rangers' Yu Darvish throws before the second inning of an exhibition spring training baseball game against the Los Angeles Angels Tuesday, March 4, 2014, in Tempe, Ariz. (AP Photo/Morry Gash)

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Texas Rangers' Yu Darvish, of Japan, watches as he gets Kansas City Royals' Salvador Perez to swing at a pitch for a strike in the second inning of an exhibition baseball, Thursday, Feb. 27, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)

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Texas Rangers' Yu Darvish (11), of Japan, delivers to the Kansas City Royals in the second inning of an exhibition baseball game on Thursday Feb. 27, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)