A notoriously unpredictable British summer appeared to favour south-west London on Tuesday as a host of famous faces gathered for another day of Centre Court action at Wimbledon. 

Following a weekend of intermittent rain and occasional sunshine, the weather showed mercy on the latest crop of celebrity fans to attend the venue, among them actress Sienna Miller, mezzo-soprano Katherine Jenkins and former Chelsea and England captain John Terry.

The A-list names were all courtside watching the action, and put on animated displays as tensions rose in Wimbledon, with Miller, 43, putting her hands on her head in despair at one point, and cheering with glee at another.

Miller led the way in a £1,425 vibrant floral patterned minidress from Alessandra Rich as she arrived on the arm of partner Oli Green. 

Evidently looking forward to the day ahead, the actress beamed while making her way into the venue alongside Oli, who looked equally smart in a navy blue suit.  

Accompanied by filmmaker husband Andrew Levitas, Welsh singer Jenkins, 45, looked radiant in a pastel pink summer dress with a distinctive cinched waistline.

With a floral print and short-sleeve detail, the floor-length outfit ensured she stood out while mingling with fellow guests at SW19 on Tuesday. 

Joining his wife, Levitas, 47, looked appropriately dapper in a three-piece single-breasted suit and polished black dress shoes.

Elsewhere, retired footballer Terry, 44, opted for a smart casual blazer and jeans while attending the event alongside his rather more glamorous wife, Toni. 

The mother-of-two, 44, looked stunning in a white lace summer dress with a plunging neckline as she posed alongside her husband. 

Also in attendance, Sir Mark Rylance was dressed for the occasion in an olive green suit, off-set with a smart beige waistcoat and oxblood leather shoes. 

Completing the look with a raffish hat, the celebrated actor, 65, appeared to be in high spirits while posing for photos alongside artist and documentary photographer Lisa Barnard. 

Richard E. Grant was also present, with the actor making an appearance in the Royal Box alongside his daughter, Olivia. 

The Saltburn star, 68 - a regular visitor to Wimbledon - had previously visited the venue with wife Joan Washington prior to her death in 2021. 

Their last appearance together at the annual event came in 2019, just two years before she lost her battle with cancer. 

The English celebrity chef Marcus Wareing was also pictured with his wife Jane at the championships.

The Princess of Wales’s parents, Sir Lenny Henry and Michael McIntyre were among the notable names to attend on Monday.

Carole and Michael Middleton were seen in the Royal Box, with the Duchess of Edinburgh and the Duchess of Gloucester also in attendance.

Kate, who attended the finals weekend of last year’s championships, is the patron of the All England Lawn Tennis Club.

Last year, the Princess of Wales presented the Wimbledon men’s final trophy to Carlos Alcaraz, in her second public engagement since she announced her cancer diagnosis.

Other stars in attendance on Tuesday included Arsenal and England footballer Bukayo Saka, and actors Tom Felton and Sir Ian McKellen.  

Actress Jodie Foster added a touch of Hollywood glamour to proceedings, with the Silence Of The Lambs star, 62, getting a warm welcome from Richard E. Grant and his daughter as she took to her seat in the Royal Box. 

Most were on hand to watch world number one Aryna Sabaleka defeat Laura Siegemund of Germany in a nervy quarter-final contest. 

Siegemund, ranked 104th in the world, was up 6-4 before losing 6-2 in the first two sets. Sabalenka subsequently won the third set 6-4. 

Elsewhere, Taylor Fritz powered his way into a maiden Wimbledon semi-final by winning a colossal Court One clash with Russian 17th seed Karen Khachanov.

In a big-hitting battle between the two tallest players to reach the last eight, 6ft 5ins Fritz overcame a third-set wobble, a medical timeout and a rogue line call to triumph 6-3 6-4 1-6 7-6 (4) against 6ft 6ins Khachanov.

The American will face either back-to-back champion Carlos Alcaraz or Britain’s Cameron Norrie for a place in Sunday’s final.

'I’m feeling great to get through it,' Fritz said in his on-court interview. 

'The match was going so well for me for two sets. I’ve never had a match really just flip so quickly, so I’m really happy with how I came back in the fourth set and got it done.

'I felt I couldn’t miss and then all of sudden I’m making a ton of mistakes. Momentum was definitely not going to be on my side going into a fifth.' 

In another embarrassing episode for tournament organisers, Wimbledon’s faltering electronic line calling system suffered a further malfunction during the quarter-final.

‘Fault’ was incorrectly called by the technology in the opening game of the fourth set when a Fritz backhand landed well inside the baseline.

With the system still tracking the initial serve, chair umpire Louise Azemar-Engzell ordered the point be replayed.

Khachanov had won the previous two meetings between the pair but those victories came three months apart more than five years ago when he was the higher-ranked player.

Fritz has been a US Open finalist since then and demonstrated his prowess on grass with three Eastbourne titles.

A break of serve in game two paved the way for the Californian to cruise to the opening set in 33 minutes.

Spectators and players alike should expect a torrid time at the south-west London venue over the coming week, after a yellow heat health alert was issued for the southern half of England, with temperatures once again set to soar.

The alert, issued by the UK Health Security Agency (UKHSA), will be in place for seven days from 10:00am on July 8 and covers London, the East Midlands, West Midlands, East of England, South East and South West.

"Significant impacts" are likely across health and social care services due to higher temperatures over the period, with the Met Office warning some areas will reach heatwave criteria and possibly see temperatures in the lows 30s by the end of the week.

The UK saw its hottest day of the year so far when 34.7C was recorded at St James's Park in central London on July 1, while the capital also experienced the hottest start to Wimbledon on record.

Provisional Met Office figures also showed England had its warmest June on record last month.

An official heatwave is recorded when areas reach a certain temperature for three consecutive days, with thresholds varying from 25C to 28C in different parts of the UK.