Cori Gauff stole the show on the opening day of Wimbledon.
The 15-year-old American defied her age to produce a stunning performance and beat five-time SW19 champion Venus Williams, who is 39.
Elsewhere, Naomi Osaka, Alexander Zverev and Stefanos Tsitsipas crashed out, but defending men’s champion Novak Djokovic plus Brits Kyle Edmund and Heather Watson progressed.
Here, PA takes a look at the first day of action.
Day one highlights
Tweet of the day
Quote of the day
The Frenchman feared he would have to let doubles partner Andy Murray down after suffering a minor thigh injury in practice. But Herbert came through his singles match unscathed against Kevin Anderson, albeit in a straight-sets loss, and looks fine to take his place alongside the Scot.
Picture of the day
Shot of the day
Djokovic was at his elastic best to win a fierce rally in his first-round win over Philipp Kohlschreiber. The defending champion somehow got to a drop shot and angled it back over the net just out of the reach of the despairing Kohlschreiber.
Age is just a number
Ivo Karlovic and Felix Auger-Aliassime, at the opposite ends of their careers, had days to remember at SW19 on Monday. Karlovic, 40, the oldest player in the men’s singles since Ken Rosewall in 1975, rolled back the years to beat Andrea Arnaboldi. Auger-Aliassime, 18, won an all-Canadian clash – on Canada Day – against Vasek Pospisil. Meanwhile, 15-year-old Gauff beat her idol, Venus Williams, 24 years her senior late on in the day.
Fallen seeds
Men: Alexander Zverev (6), Stefanos Tsitsipas (7), Gael Monfils (16), Dusan Lajovic (32)
Women: Naomi Osaka (2), Aryna Sabalenka (10), Marketa Vondrousova (16), Caroline Garcia (23), Daria Kasatkina (29)
Celebrity corner
Brits Watch
With Watson and Edmund winning on Monday, the attention turned to the other eight Brits in action on day two. British number one Johanna Konta kicks off her championships against Ana Bogdan of Romania, second on Court One. Katie Swan meets Laura Siegemund of Germany and Harriet Dart faces American Christina McHale. Of the British men in action Cameron Norrie plays Denis Istomin of Uzbekistan, Dan Evans faces Argentinian Federico Delbonis, James Ward meets Georgia’s Nikoloz Basilashvili and Jay Clarke takes on American Noah Rubin. In the evening all eyes will be on Paul Jubb, the 19-year-old from Hull who won the prestigious NCAA singles title, when he entertains Joao Sousa of Portugal.
Day two order of play
Centre court
Tatjana Maria v Angelique Kerber
Lloyd Harris v Roger Federer
Serena Williams v Giulia Gatto-Monticone
Court One
Ashleigh Barty v Saisai Zheng
Ana Bogdan v Johanna Konta
Yuichi Sugita v Rafael Nadal
Other courts
Sloane Stephens v Timea Bacsinszky (Court Two)
Dominic Thiem v Sam Querrey (Court Two)
Maria Sharapova vs Pauline Parmentier (Court Two)
Ons Jabeur vs Petra Kvitova (Court Three)