Carlos Alcaraz risks breaking Wimbledon dress code with hidden detail on his Nike trainers

Carlos Alcaraz has made it into the Wimbledon quarter-finals this week but the Spanish star has been pushing the boundaries with his Nike gear

Carlos Alcaraz's new Nike trainers have been pushing Wimbledon's stringent dress code to its limit.

The young star recently secured his place in the quarter-finals at SW19 after defeating the dangerous, left-handed Frenchman Ugo Humbert 6-3, 6-4, 1-6, 7-5. However, he risked the ire of the All England Lawn Tennis and Croque Club officials with the trainers he was wearing on the court.

Wimbledon's iconic all-white dress code is famous for its strictness, yet the No.3 seed's outfit was close to breaking their rules. They dictate that players are required to wear "suitable tennis attire that is almost entirely white", with no exceptions made for any gear considered "off-white or cream".

Tennis greats Nick Kyrgios and Roger Federer have both previously run afoul of these regulations. Kyrgios was "reminded of the rules" when he sported a red baseball cap during his 2022 match against Brandon Nakashima, while Federer was informed that his orange-soled trainers were a breach of the dress code in 2013.

However, it seems Alcaraz has been given the green light to wear his shoes, despite them featuring a non-white detail.

Alcaraz took to Centre Court for his match against the 16th seed sporting a customised pair of Nike trainers, complete with a unique, light-blue chequered pattern on the sole. This distinctive design is believed to be a nod to his love of chess, reports the Express.

Although the blue is subtle, it can still be seen from certain angles by viewers at home. The shoes also boast a light blue outline on the Nike logo and around the edge of the shoe.

The shoes, which are believed to be the start of a customised clothing line that Nike will create for him until 2035, have not yet been pulled up by organisers. Last month, Alcaraz inked a new deal with the sports apparel giant, similar to those signed by his predecessors Rafael Nadal and Federer.

Spanish outlet Relevo reports that his new contract will net him between $15-$20m (£11.7m-£15.9m) per year and will also see Nike design a personalised logo for the Spanish player, as they did for Nadal and Federer. He was initially contracted until 2025, but he is expected to sport their gear for at least another ten years.

Alcaraz, along with his chessboard-inspired trainers, will take on Tommy Paul in the quarter-final on Tuesday. Despite breezing through the first two sets against Humbert, the Frenchman threatened a massive comeback when he outplayed the Spaniard in the third set.

However, Alcaraz regained his composure and form to clinch the final set and secure his spot in the last-eight. Post-match, the three-time Grand Slam champion admitted he usually finds it difficult playing against left-handed stars but was happy he regained control.

He said: "Playing lefties is always tricky. At Queen's, first on grass [against Draper], was very difficult, but I just played my own game.

"I feel great today. I played at a really high level. I just had to stay in the point, show my opponent that I'm always going to be there, last ball. Now I will rest a little bit, recovering to be 100 per cent for the next one."