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WASHINGTON, DC - MARCH 18: Columbus Crew forward Ola Kamara (11) and midfielder Artur (7) with Columbus Crew forward Federico Higuain (10) after he had scored the first goal during a MLS match between D.C. United and the Columbus Crew on March 18, 2017, at RFK Stadium, in Washington D.C. Columbus defeated D.C. United 2-0. (Photo by Tony Quinn/Icon Sportswire via Getty Images)

WASHINGTON, DC - MARCH 18: Columbus Crew forward Ola Kamara (11) and midfielder Artur (7) with Columbus Crew forward Federico Higuain (10) after he had scored the first goal during a MLS match between D.C. United and the Columbus Crew on March 18, 2017, at RFK Stadium, in Washington D.C. Columbus defeated D.C. United 2-0. (Photo by Tony Quinn/Icon Sportswire via Getty Images)