Jannik Sinner has won his first tournament since becoming world number one in men’s tennis a fortnight ago, the Halle grass court event 7-6 (10-8), 7-6 (7-2) over Hubert Hurkacz on Sunday. Sinner saved a set point in the first set tie-break before prevailing in 1 hour 49 minutes on first match point against former Wimbledon semi-finalist and his Halle doubles partner Hurkacz. ”It means a lot. It was a tough match against Hubi,” Sinner said. “I knew I had to serve really well and you play only a couple of really important points throughout the whole set,” Sinner said after the final which featu…