"I wish I could have stepped on court, but my body won't let me. I will see you next year," the former world No. 1 said.

One suitcase is yet to be found; the other was left sitting in the middle of baggage claim until the Croatian went to investigate at LaGuardia Airport.

The 2019 women's champion needed just 59 minutes to beat Paula Badosa, while the American achieved his best major result with his own dominant straight-set victory.

Before kicking off their campaigns in San Jose the three players spent time furry friends Olive and Chewy.

Garbiñe Muguruza was one of five seeds to advance at the Dubai Duty Free Tennis Championships on Monday, rallying from a second-set deficit to defeat Irina-Camelia Begu.

At the Adelaide International, Coco Gauff eliminated sixth seed Petra Martic in three sets on Wednesday, before countrywoman Danielle Collins knocked out world No. 1 Ashleigh Barty, 6-3, 6-4.

The 16-year-old is listed as a solid -195 favorite against Martic, which seems a bit aggressive given her recent struggles on her serve and forehand.