Katie Boulter watched her Aussie boyfriend Alex de Minaur lose at Wimbledon today ahead of a Fantastic Friday for British players.

The British women's number one was seen cheering from the stands on Court 18, where De Minaur was up against Italy's Matteo Berrettini. He went on to lose in three sets after a hard-fought contest. 

Boulter, 26, who dispatched Bulgaria’s Viktoriya Tomova in the singles yesterday, is playing with her 24-year-old partner later this afternoon in the mixed doubles. 

Meanwhile, Andy Murray will be looking to finish the job against Greek fifth seed Stefanos Tsitsipas after their dramatic match was adjourned late yesterday. 

British number one Cameron Norrie is second on Court One while Liam Broady - who yesterday pulled off a dramatic upset by beating fourth seed Casper Ruud - is third on Court 2. 

In the men's doubles, British world number six Joe Salisbury and his American partner Rajeev Ram will do battle just after 4pm. 

Murray was two sets to one up when play was halted at around 10.40pm yesterday, and all eyes will be on how the Brit pulls up after the injury scare he suffered in the penultimate point.

On set point, the 36-year-old went down screaming when trying to change direction before picking himself up and delivering an unreturnable serve that put him 2-1 up.

The match referee then decided it was too late to start a fourth set, meaning Murray and Tsitsipas must return on Friday afternoon to finish with the Scot leading 6-7 (3) 7-6 (2) 6-4.

Carlos Alcaraz, who felt sidelined when he could not play on Centre Court in front of Roger Federer on Tuesday, will open play today against Alexandre Muller before Murray returns to finish his match.

Then women's top seed Iga Swiatek will play Petra Martic before the headline act between Novak Djokovic and Stan Wawrinka closes a thrilling day's action.

One of the big rivalries of the last 15 years is reignited on Centre Court as defending champion Djokovic faces Wawrinka in the third round.

The pair have fought it out on the biggest stage over the years with two of Wawrinka's three grand slam titles coming after beating Djokovic in the final, most memorably in a stunning performance at the French Open in 2015.

But injury has taken its toll on the Swiss in recent years and he is no longer competing at the same level as Djokovic, who has almost got better with age.

Wawrinka has given himself 'zero' chance of winning Wimbledon but he will have plenty of support on Centre Court as he eyes a huge upset.

Security is extra tight at Wimbledon today as the tournament braces for further protests by Just Stop Oil.

Dale Vince, who is a donor to the group, defended the disruptive demonstrations during a TV appearance last night. 

The businessman, who has donated money both to the protest group and Labour, said rain had a bigger impact on the tennis Grand Slam.

Appearing on the BBC's Question Time, he claimed that the weather was getting worse and that would 'come home to roost' in sports events.

The defiant comments came as Keir Starmer frantically tried to distance himself from the activities of JSO.

A government minister yesterday suggested that members of the crowd would be justified in taking action to stop protests.