WIMBLEDON, England — Roger Federer and Serena Williams are making it look easy at Wimbledon — again.

Caroline Wozniacki is heading home early — again.

Federer and Williams cruised into the third round with straight-sets victories on Wednesday, looking at home on the Centre Court where they have won 15 titles between them.

But Wozniacki still can’t seem to get comfortable at the All England Club, especially when there’s a swarm of bugs flying around her head.

Wozniacki, the No. 2 seed and the reigning Australian Open champion, went out before the third round for the fourth time in seven years, losing, 6-4, 1-6, 7-5, to Ekaterina Makarova after complaining to the chair umpire about the insects that invaded No. 1 court during the second set.