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FILE - In this Aug. 17, 2012, file photo, Arizona Diamondbacks' Chris Johnson makes the catch for an out of Houston Astros' Brandon Barnes during the eighth inning of a baseball game in Houston. A person familiar with the situation says Arizona has traded outfielder Justin Upton to the Atlanta Braves in a deal that sends All-Star third baseman Martin Prado to the Diamondbacks. The Braves also get third baseman Chris Johnson. The person spoke to The Associated Press on condition of anonymity on Thursday, Jan. 24, 2013, because the trade has not officially been announced. (AP Photo/Pat Sullivan, File)

Associated Press
FILE - In this Aug. 17, 2012, file photo, Arizona Diamondbacks' Chris Johnson makes the catch for an out of Houston Astros' Brandon Barnes during the eighth inning of a baseball game in Houston. A person familiar with the situation says Arizona has traded outfielder Justin Upton to the Atlanta Braves in a deal that sends All-Star third baseman Martin Prado to the Diamondbacks. The Braves also get third baseman Chris Johnson. The person spoke to The Associated Press on condition of anonymity on Thursday, Jan. 24, 2013, because the trade has not officially been announced.  (AP Photo/Pat Sullivan, File)
FILE - In this Aug. 17, 2012, file photo, Arizona Diamondbacks' Chris Johnson makes the catch for an out of Houston Astros' Brandon Barnes during the eighth inning of a baseball game in Houston. A person familiar with the situation says Arizona has traded outfielder Justin Upton to the Atlanta Braves in a deal that sends All-Star third baseman Martin Prado to the Diamondbacks. The Braves also get third baseman Chris Johnson. The person spoke to The Associated Press on condition of anonymity on Thursday, Jan. 24, 2013, because the trade has not officially been announced. (AP Photo/Pat Sullivan, File)
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