Jannik Sinner beat Argentina's Tomas Etcheverry 6-7 6-4 6-2 and qualified for the last 16 of the Shanghai Masters 100 on Sunday. "It was a tough match, physically and mentally," said the 23-year-old South Tyrolean world number one and Aussie Open champ who last week lost the China Open in Beijing to 21-year-old Spanish world number three, former US Open and reigning French Open and two-time Wimbledon champ Carlos Alcaraz. "I had my chances in the first set, then he played a great tiebreak. "In the second set I was a break up, then I suffered the counterbreak, but then I found my rhythm. "He started to serve worse and I managed to play the return games. "I'm happy, tomorrow will be a day of rest that I really need to be ready for the next match". Source: Ansa News Agency