NEW YORK (REUTERS) - Former US Open champion Bianca Andreescu fired off 21 winners to make quick work of Belgian Greet Minnen 6-1 6-2 in the third round of the tournament on Saturday (Sept 4).

The 21-year-old Canadian won nearly all of her first-serve points in the first set on Louis Armstrong Stadium with just four unforced errors, two years after she hoisted the trophy.