Popyrin ousts defending champion Djokovic at US Open

Alexei Popyrin moved into the last-16 at a Grand Slam tournament for the first time on Saturday following a stunning four-set win over the defending champion Novak Djokovic. Their third round match at the US Open in New York ended 6-4, 6-4, 2-6, 6-4 to the 25-year-old Australian.