New York, Sep 4 (EFE).- Defending champion Carlos Alcaraz made the quarterfinals of the United States Open on Monday to set up a clash with Alexander Zverev, while Aryna Sabalenka breezed past her opponent to continue her bid for a second Grand Slam. World No. 1 Alcaraz beat No. 61 seed Matteo Arnaldi 6-3, 6-3, …