The blue Matteo Berrettini enters the second round of the US Open.
The Roman tennis player, favorite number 6 of the tournament, beat the Norwegian Casper Ruud in three sets (6-4, 6-4, 6-2).
Nothing to do, however, for Enrico Caruso, defeated in three sets by 6-0, 6-4, 6-0 by the Russian Rublev, seeded no.
10 of the tournament and who will be Berrettini's next opponent.
Djokovic extends his winning streak to 26.
The number 1 in the world never gave Jan-Lennard Struff a chance with a 6-3 6-3 6-1 winning the thirteenth consecutive qualification to the round of 16 of the US Open.
In the women's draw, former world No. 1 Naomi Osaka risked losing to 18-year-old Marta Kostyuk.
