New York | Halfway through a second set that lasted one hour and 44 minutes, a test of tenacity as much as talent amid a US Open final as exhausting as it was exhilarating, Novak Djokovic and Daniil Medvedev engaged in a 32-stroke point.
It was among many such elongated exchanges between two men whose styles are nearly mirror images, and Djokovic capitulated on this one by netting a backhand. He fell to his back and stayed down, chest heaving. The crowd roared.