Brazil's Beatriz Haddad Maia came from a set down to beat former Wimbledon champion Petra Kvitova and reach the second round of the new WTA 500 event at Queen's Club on Monday.
After a 52-year gap since the last top-tier women's event was held at the London grasscourt club, it was fitting that twice Wimbledon winner Kvitova opened proceedings on a court named after former British Wimbledon champion Andy Murray, winner of the men's title a record five times.
After an impressive start on the pristine centre court lawn in front of a sizeable crowd, however, the Czech was unable to hold off her younger opponent, who prevailed 2-6 6-4 6-4.
Kvitova, who won her titles at the All England Club in 2011 and 2014, made her comeback from a 17-month maternity break in February and gained entry to the tournament via a protected ranking.
After holding serve in a marathon fifth game, the 35-year-old surged on to win the opening set and looked on course for only her second victory since returning.
The rust was apparent, though, as world number 22 Haddad Maia worked her way back into the match and claimed the win.
After levelling the match, she got an early break in the deciding set, and that proved decisive as she sealed a clash against American third seed Emma Navarro.
"For sure (Petra) is one of the best players on this surface, and it's a privilege to be here," Haddad Maia said.
Britain's Sonay Kartal delighted the home fans with a 6-1 3-6 6-3 defeat of Australia's world number 16 Daria Kasatkina.
"It was an unbelievable opener for me, to be able to play on this court as well, with you guys cheering me on, it was a super-special moment," Kartal said on court.
German qualifier Tatjana Maria also made it through as she beat 2021 US Open runner-up Leylah Fernandez 7-6(4) 6-2.
Last year's Wimbledon semifinalist and Olympic runner-up Donna Vekic lost 6-3 6-3 to Anastasia Zakharova, who set up a clash against American Madison Keys.
Britain's Emma Raducanu tops the schedule on Tuesday with a first round against Spanish qualifier Cristina Bucsa, while reigning Wimbledon champion Barbora Krejcikova continues her grasscourt build-up against Slovakia's Rebecca Sramkova.