Rafael Soriano

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Washington Nationals relief pitcher Rafael Soriano (29) untucks his jersey as the Nationals defeat the Detroit Tigers 5-4 in a baseball game, Thursday, May 9, 2013, in Washington. (AP Photo/Nick Wass)

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Washington Nationals relief pitcher Rafael Soriano (29) celebrates with Washington Nationals catcher Wilson Ramos (40) as the Washington Nationals beat the Miami Marlins 2-0 on opening day at Nationals Park, Washington, D.C., Monday, April 1, 2013. (Andrew Harnik/The Washington Times)

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Washington Nationals relief pitcher Rafael Soriano warms up before an opening day baseball game against the Miami Marlins in Washington, on Monday, April 1, 2013. (AP Photo/Alex Brandon)

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Washington Nationals relief pitcher Rafael Soriano (29) warms up at a morning practice during spring training at Space Coast Stadium, Viera, Fla., Tuesday, February 26, 2013. (Andrew Harnik/The Washington Times)

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Washington Nationals pitcher Rafael Soriano delivers a pitch during the ninth inning of an exhibition spring training baseball game against the Atlanta Braves on Wednesday, March 27, 2013, in Viera, Fla. (AP Photo/Evan Vucci)

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Washington Nationals pitcher Rafael Soriano delivers a pitch during the seventh inning of an exhibition spring training baseball game against the Atlanta Braves on Monday, March 11, 2013, in Viera, Fla. (AP Photo/Evan Vucci)

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Washington Nationals relief pitcher Rafael Soriano (29) warms up at a morning practice during spring training at Space Coast Stadium, Viera, Fla., Tuesday, February 26, 2013. (Andrew Harnik/The Washington Times)

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This is a 2013 photo of Rafael Soriano of the Washington Nationals baseball team. This image reflects the Nationals active roster as of Feb. 20, 2013 when this image was taken.(AP Photo/Phelan M. Ebenhack)

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Washington Nationals pitcher Rafael Soriano waits with teammates for the start of a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)

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Washington Nationals pitcher Rafael Soriano throws during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)

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Washington Nationals pitcher Rafael Soriano throws during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)

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Scott Boras, agent for newly acquired Washington Nationals pitcher Rafael Soriano, speaks during an introductory news conference at Nationals Park, Thursday, Jan. 17, 2013, in Washington. (AP Photo/ Evan Vucci)

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Newly acquired Washington Nationals pitcher Rafael Soriano pauses during an introductory news conference at Nationals Park, Thursday, Jan. 17, 2013, in Washington. (AP Photo/ Evan Vucci)

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** FILE ** In this Oct. 13, 2012, file photo, New York Yankees' pitcher Rafael Soriano throws in the tenth inning of Game 1 of baseball's American League championship series against the Detroit Tigers in New York. A person familiar with the negotiations says Soriano and the Washington Nationals are working to finalize a $28 million, two-year contract. The person spoke to The Associated Press on Tuesday, Jan. 15, 2013, on condition of anonymity because the deal had not been signed. (AP Photo/Matt Slocum)