Top seed Naomi Osaka edged past Greece's Maria Sakkari 6-1 4-6 6-3 in round one of the Birmingham Classic.
Former Wimbledon champions Angelique Kerber and Maria Sharapova will do battle at the Mallorca Open this week.
His nemesis at the US Open last year, Roger Federer had too much for John Millman this time at the Halle Open.
After the stifling pressure of chasing a third consecutive grand slam, Naomi Osaka feels ready to make a mark on grass in England.
Sofia Kenin overcame Kirsten Flipkens at the Mallorca Open, where Elise Mertens also progressed courtesy of a win over Andrea Petkovic.
Karolina Pliskova and Johanna Konta were victorious at the Birmingham Classic, but Elina Svitolina suffered a first-round exit.
In his first match since March, Kevin Anderson came from behind to beat Cameron Norrie at Queen's.
Second seed Alexander Zverev moved into the Halle Open last 16, but Gael Monfils was an early casualty on day one in Germany.
Serena Williams served as one of Wozniacki's bridesmaids, while Pau Gasol, Harrison Barnes and Angelique Kerber were among the guests.
Andy Murray looked set to retire this year but, as he prepares to return in doubles, Feliciano Lopez believes his quality is still evident.
Felix Auger-Aliassime was denied a first ATP Tour title by Matteo Berrettini, who won the Stuttgart Open final.
Runner-up at the 2018 Stuttgart Open, Milos Raonic continued his comeback from injury by beating Jo-Wilfried Tsonga in Germany on Wednesday.
Kristina Mladenovic and Donna Vekic were among the winners in the first round of the Nottingham Open.
The draw for the Fever-Tree Championships has pitted Andy Murray and Feliciano Lopez against Juan Sebastian Cabal and Robert Farah.
World number four Kiki Bertens was forced to retire from the French Open due to illness, but could add to her list of honours this weekend.