# Tennis: Four-time champion Novak Djokovic defeated American teenager Learner Tien, 6-1, 7-6, 6-2, to progress to the US Open second round. The Serb, who is bidding for a record 25th Grand Slam title, now has 75 consecutive opening-round wins at majors. France’s Benjamin Bonzi knocked out Russia’s Daniil Medvedev, 6-3, 7-5, 6-7, 0-6, 6-4. In the women’s draw, Belarusian Aryna Sabalenka began her title defence with a 7-5, 6-1 victory against Switzerland’s Rebeka Masarova, while Britain’s Emma Raducanu eased past Japanese qualifier Ena Shibahara, 6-1, 6-2.
Tennis: Medvedev knocked out as Djokovic and Sabalenka win in the US Open first round