Martín Pérez

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Texas Rangers manager Ron Washington (38) heads to the mound to relieve pitcher Martin Perez (33) during the fourth inning of a baseball game against the Boston Red Sox, Saturday, May 10, 2014, in Arlington, Texas. (AP Photo/Jim Cowsert)

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Texas Rangers starting pitcher Martin Perez throws to the Boston Red Sox during the first inning of a baseball game on Saturday, May 10, 2014, in Arlington, Texas. (AP Photo/Jim Cowsert)

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Texas Rangers starting pitcher Martin Perez works against the Colorado Rockies in the first inning of an interleague baseball game in Denver on Monday, May 5, 2014. (AP Photo/David Zalubowski)

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Texas Rangers' Martin Perez works against the Oakland Athletics in the fourth inning of a baseball game, Tuesday, April 29, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

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Texas Rangers manager Ron Washington, left, takes the ball from starting pitcher Martin Perez in the fifth inning of a baseball game against the Oakland Athletics as Robinson Chirinos, from left, Adrian Beltre, Elvis Andrus, Josh Wilson and Prince Fielder (84) stand near, Tuesday, April 29, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

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Oakland Athletics' Yoenis Cespedes tosses the bat after earning a walk against Texas Rangers' Martin Perez in the first inning of a baseball game, Tuesday, April 29, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

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Texas Rangers' Martin Perez talks to catcher Robinson Chirinos, right, on the mound after giving up a two-run double to Oakland Athletics' Derek Norris in the first inning of a baseball game, Tuesday, April 29, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

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Texas Rangers starting pitcher Martin Perez works against the Oakland Athletics in the first inning of a baseball game, Tuesday, April 29, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

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Texas Rangers' Martin Perez celebrates at the end of a baseball game against the Oakland Athletics, Wednesday, April 23, 2014, in Oakland, Calif. Perez pitched his second consecutive shutout to extend his scoreless innings streak to 26, giving Texas a 3-0 win. (AP Photo/Ben Margot)