Aye, Sinner takes advantage of the slight drop in the form of Zverev who also had a fall.  Tennis is brilliant, when Zverev fell Sinner was over quickly to help him up.  Sinner wins the 3rd 6-3.  

Zverev starting to very slightly fade, still close but I detect Sinner just taking control.  2-1 Sinner in the third. 

Another tie break, who'd have thunk it, which Sinner takes fairly comfortably 7-2. Still nothing in it.