Jannik Sinner has returned on the training court. He pulled out of the US Open before it started. A knee injury ensured he missed playing in New York altogether. Three weeks of rehab have passed. He is still working through rehab. China is the target for his return. He wants to compete on the Asian circuit. The US Open was the closing Grand Slam of the year. Alexander Zverev defeated Ben Shelton for the title. That gave Zverev his second Grand Slam title of the year.