NEW YORK — Carlos Alcaraz reasserted his superiority over Jannik Sinner with a 6-2, 3-6, 6-1, 6-4 victory Sunday in the U.S. Open final — the third Grand Slam tournament in a row where these elite, young rivals met to decide the champion — for his second trophy at Flushing Meadows and sixth overall at a major.

President Donald Trump sat in a sponsor’s suite in Arthur Ashe Stadium and received a mix of cheers and boos when he offered a wave beforehand and again when he was shown on videoboards after the first set. The match’s start was delayed by about 30 minutes because thousands of fans were still outside in line, trying to get through the extra security measures in place because of the presence of a sitting president at the tournament for the first time since Bill Clinton in 2000

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