Yu Darvish

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YU DARVISH - Chicago Cubs starting pitcher Yu Darvish throws during a practice session at the team's spring training baseball facility Friday, Feb. 16, 2018, in Mesa, Ariz. (AP Photo/Carlos Osorio)

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FILE - In this Jan. 20, 2012, file photo, new Texas Rangers baseball pitcher Yu Darvish smiles during a news conference at Rangers Ballpark in Arlington, Texas. When Yu Darvish arrived in Texas from Japan in 2012, the Rangers were coming off consecutive World Series appearances. With a third straight AL West title long out of reach, and the push for a wild card becoming ever more difficult with each loss, the Rangers dealt the pitcher they spent more than two years scouting and more than $107 million to acquire for three minor league players.(AP Photo/LM Otero, File)

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FILE - In this Jan. 20, 2012, file photo, new Texas Rangers pitcher Yu Darvish walks onto the baseball field as members of the media line up to make pictures after a news conference at Rangers Ballpark in Arlington, Texas. When Yu Darvish arrived in Texas from Japan in 2012, the Rangers were coming off consecutive World Series appearances. As was expected with his celebrated arrival then, Darvish is now pitching for a World Series contender. Except it is the NL West-leading Los Angeles Dodgers and not in Texas, where the ace never won a postseason game and wasn’t even part of a playoff series victory. (AP Photo/LM Otero, File)

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FILE - In this July 9, 2017, file photo, Texas Rangers starting pitcher Yu Darvish adjusts his hat as he works the first inning of a baseball game against the Los Angeles Angels, in Arlington, Texas. As the hours tick down to baseball's trade deadline, three standout pitchers remain at the center of attention. Sonny Gray, Justin Verlander and Yu Darvish each have the potential to help a contending team down the stretch, and if any of them are traded Monday, July 31, 2017, it would certainly spice up what has been a fairly pedestrian stretch of deals so far. (AP Photo/Richard W. Rodriguez, File)

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FILE - In this July 26, 2017, file photo, Texas Rangers' Yu Darvish throws to against the Miami Marlins in the fourth inning of a baseball game, in Arlington, Texas. As the hours tick down to baseball's trade deadline, three standout pitchers remain at the center of attention. Sonny Gray, Justin Verlander and Yu Darvish each have the potential to help a contending team down the stretch, and if any of them are traded Monday, July 31, 2017, it would certainly spice up what has been a fairly pedestrian stretch of deals so far. (AP Photo/Tony Gutierrez, File)

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FILE - In this July 26, 2017, file photo, Texas Rangers' Yu Darvish throws to against the Miami Marlins in the fourth inning of a baseball game, in Arlington, Texas. As the hours tick down to baseball's trade deadline, three standout pitchers remain at the center of attention. Sonny Gray, Justin Verlander and Yu Darvish each have the potential to help a contending team down the stretch, and if any of them are traded Monday, July 31, 2017, it would certainly spice up what has been a fairly pedestrian stretch of deals so far. (AP Photo/Tony Gutierrez, File) **FILE**

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In this July 9, 2017, photo, Texas Rangers starting pitcher Yu Darvish adjusts his hat as he works the first inning of a baseball game against the Los Angeles Angels in Arlington, Texas. Rangers right-hander Darvish makes his final scheduled start before Monday's non-waiver trade deadline with growing speculation that the potential free agent could be dealt to another team. (AP Photo/Richard W. Rodriguez)

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Texas Rangers starter Yu Darvish pitches against the Tampa Bay Rays during the first inning of a baseball game Friday, July 21, 2017, in St. Petersburg, Fla. (AP Photo/Steve Nesius)

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Texas Rangers starting pitcher Yu Darvish throws during the second inning of a baseball game against the Kansas City Royals, Sunday, July 16, 2017, in Kansas City, Mo. (AP Photo/Charlie Riedel)

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Texas Rangers starting pitcher Yu Darvish throws during the second inning of a baseball game against the Kansas City Royals, Sunday, July 16, 2017, in Kansas City, Mo. (AP Photo/Charlie Riedel)

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Oakland Athletics' Adam Rosales celebrates as he crosses home plate after hitting a two-run home run off Texas Rangers' Yu Darvish during the sixth inning of a baseball game Tuesday, April 18, 2017, in Oakland, Calif. (AP Photo/Ben Margot)

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Texas Rangers pitcher Yu Darvish, second from right, hands the ball to manager Jeff Banister as he is removed during the sixth inning of the team's baseball game against the Oakland Athletics on Tuesday, April 18, 2017, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Adam Rosales, right, celebrates as he rounds third base after hitting a two-run home run off Texas Rangers' Yu Darvish, foreground, during the sixth inning of a baseball game Tuesday, April 18, 2017, in Oakland, Calif. (AP Photo/Ben Margot)

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FILE - In this July 27, 2016, file photo, Texas Rangers starting pitcher Yu Darvish throws during the third inning of a baseball game against the Oakland Athletics in Arlington, Texas. Darvish and Cole Hamels, the Rangers two aces, are set to start a season in the rotation together for the first time.(AP Photo/LM Otero, File)

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Texas Rangers pitcher Yu Darvish, left, smiles while speaking to reporters Friday, Jan. 20, 2017, at the team's winter banquet in Dallas. Darvish is going into the final season of the six-year contract he signed with the Rangers after seven seasons in Japan. The 30-year-old Darvish, who missed all of 2015 after Tommy John surgery and didn't make his debut last season until the end of May, says he wants to prove to the Rangers how good of a pitcher he is. (AP Photo/Stephen Hawkins)