Jannik Sinner tempers concerns about his arm as he defeats Ben Shelton: "It has improved a lot from yesterday"

After the scare against Dimitrov, Sinner is back and did not give Ben Shelton any chances.

Many people were alarmed last Monday, when Jannik Sinner won the quarter-final games against Grigor Dimitrov only because his rival had to retire due to injury, in a moment where the World No. 1 was