Coleman Wong Chak-lam of Hong Kong continued his encouraging progress on two fronts at Wimbledon as he won again in the boys’ singles. He sent ninth seed Dino Prizmic packing in the second round on Tuesday, the day after accounting for the third seeds in the doubles with partner Michael Zheng. Wong slipped 3-1 behind but fought back to take the first set and kept up the momentum by breaking Prizmic at the start of the second. He again broke the Croat – aged 16 to Wong’s 18 – and served for the match, taking it 7-5, 6-2. “Hungry for more,” Wong wrote on social media soon after his match. “Passing the second round, the atmosphere is good today. Thank you so much for watching and supporting me. Don’t make it stop.” Next up for the Hongkonger will be Peter Privara of Slovakia, who made an impact of his own on Tuesday by beating American No 5 seed Nishesh Basavareddy – knocked out of the doubles by Wong 24 hours earlier. A two-time boys’ doubles grand-slam title winner, Wong’s next opponent alongside Zheng will be British pair Henry Searle and Luca Pow. Wong, who has spent time training in Spain at the Rafa Nadal Academy, has yet to go deep into a grand slam event in singles, but he made history last year when he became only the second Hong Kong player to win a grand slam title, partnering France’s Max Westphal to the boys’ doubles title at the US Open. Meanwhile in the men’s singles, Nick Kyrgios was on improved behaviour as he reached the quarter-finals, hours after receiving a second misconduct fine of the week. Having been handed a US$4,000 penalty related to his bad-tempered third-round win over Stefanos Tsitsipas – following a US$10,000 fine after his first-round match for spitting – a more low-key Kyrgios fought through in five sets against unseeded American Brandon Nakashima. As the men’s quarter-finals begin on Wednesday, Nick Kyrgios remains on course for the intriguing possibility of a Wimbledon reunion with Rafael Nadal in the last four. It was the Spaniard, then the world No 1, who Kyrgios beat to reach the quarter-finals on his Wimbledon debut as a wild card in 2014. Kyrgios plays Cristian Garin of Chile while second seed Nadal takes on Taylor Fritz of the United States.