Carlos Alcaraz said he had the "best physio in the world" after shrugging off concerns about an ankle injury to beat Zizou Bergs in the second round of the Japan Open. The world number one had said he was "scared" after landing awkwardly during his first-round win over Sebastian Baez on Thursday. "I could play, I would say, normally," said Alcaraz, who won the US Open last month. Elsewhere, world number two Jannik Sinner was taken to three sets by 23-year-old French qualifier Terence Atmane in the China Open, winning 6-4 5-7 6-0 to reach the quarter-finals. The Italian, who lost to Alcaraz in the final of the US Open but has won the Australian Open and Wimbledon this season, wobbled in the second set after twice leading by a break.