Texas Rangers

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Texas Rangers pitching coach Mike Maddux responds to questions about Yu Darvish's throwing session during spring training baseball practice, Tuesday, Feb. 18, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)

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Texas Rangers' Yu Darvish of Japan smiles after responding to a question at a news conference during spring training baseball practice, Tuesday, Feb. 18, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)

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Texas Rangers' Yu Darvish, left at the table, of Japan, speaks during a news conference at baseball spring training, Tuesday, Feb. 18, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)

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Texas Rangers' Yu Darvish wipes his forehead as he and his translator Kenji Nimura, right, smile after Darvish responded to a question about his first throwing session, at a news conference during baseball spring training Tuesday, Feb. 18, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)

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Texas Rangers' Yu Darvish, of Japan, motions with his arm after delivering a pitch in batting practice during baseballs spring training Tuesday, Feb. 18, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)

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Texas Rangers starting pitcher Yu Darvish, of Japan, throws batting practice as his translator Kenji Nimura, left rear, and pitching coach Mike Maddux, right rear, watch during spring training baseball practice, Tuesday, Feb. 18, 2014, in Surprise, Ariz. (AP Photo/Tony Gutierrez)