Mike Bryan (1st R) and Jack Sock (2nd R) of the United States, Lukasz Kubot(1st L) of Poland and Marcelo Melo of Brazil react during the awarding ceremony after the men's doubles final match at the 2018 US Open tennis tournament in New York, the United States, Sept. 7, 2018. Bryan and Sock won 2-0 and claimed the title. (Xinhua/Liu Jie)