Eagle-eyed tennis fans would’ve spotted Iga Swiatek’s mismatched kit as she kicked off her Wimbledon campaign on Monday.
The world No.1 came through in straight sets against Zhu Lin on Court One as she bids to win her fifth grand slam title following a hat-trick of victories at the French Open and her triumph last year in the US. Swiatek's latest win comes off the back of a new deal off the court as well.
In March, Swiatek signed a money-spinning contract with Swiss brand On Running - the shoe company associated with Roger Federer - after a four-year association with Asics. She announced: "I’m thrilled to announce I am the first female tennis athlete at On. I’m happy the On team believes in me as an athlete and a person. We plan to grow, develop and make an impact together. Big thanks to my team for this amazing achievement in business."
However, the Polish star was spotted still wearing her former sponsor’s Gel Resolution 9 footwear on court almost four months later as she got her trophy tilt underway in SW19 with a 6-1, 6-3 win over her Chinese opponent to book her spot in round two. Wimbledon men's champion Novak Djokovic also wears Asics shoes but has a separate clothing deal with Lacoste.
Swiatek does not have the best pedigree on grass, having never made it past the fourth round, but signs are positive that this will be the year she has a proper crack at winning the title. Zhu - ranked 34th in the world - was no match for her, with a routine victory only slightly delayed by a rain shower that saw the roof closed.
The all white dress code is a big tradition at the All England Club in SW19 but a recent rule change now permits athletes to wear different colour underwear. The shift has been welcomed by players.
Heather Watson told Sky News: "When Wimbledon announced about the undershorts I was so happy because it makes such a difference. I speak openly about my period, I don't think it's a taboo subject and I would love for people to talk about it more.
"Last year I went on the pill to stop myself bleeding because I knew I had to wear white undershorts and I didn't want any embarrassment. We're running around sweating, doing the splits on court. This year I knew my period was going to be during Wimbledon again so I'm very happy I won't have to do the same thing as last year."