Former world number one Kim Clijsters continued her stunning comeback to grand slam tennis as she outclassed fellow Belgian Kirsten Flipkens 6-0 6-2 to reach the fourth round of the U.S. Open.
The Belgian, back after two years off the tour, needed just 62 minutes to book her place in the last 16.
The first set lasted less than half an hour as 2005 champion forced world number 93 Flipkens into a series of errors.
Flipkens led by a break at 2-1 in the second set but Clijsters ran through five successive games to set up a clash with third seed Venus Williams.
