Ivan Lendl's effect on Andy Murray is contagious, or at least that is the theory being put forward by Wimbledon's surprise semi-finalist Elena Vesnina.
Murray plays Jo-Wilfried Tsonga in the last eight on Wednesday but Vesnina believes her victory over Dominika Cibulkova may have something to do with the Scot's new coach.
Vesnina plays mixed doubles with Bruno Soares, who plays men's doubles with Jamie Murray, who is Andy Murray's older brother, which means Vesnina says 'the Lendl effect' has trickled down.
"You see, I have it now," said Vesnina, who will face Serena Williams in the last four on Thursday.
"Bruno Soares, my mixed doubles partner, he tweeted three weeks ago at the Queen's tournament, there is, with a hashtag, a Lendl effect, because he's playing with Jamie Murray, who is brother of Andy Murray, who won Queen's.
"And they won, as well. They were winning some tournaments. There's definitely a Lendl effect. I tweeted them back, 'I'm your partner in mixed doubles, I'm your partner as well'.
"He said, 'You will see, you will get it'. And now I am in semi-final of Wimbledon. There is something in it."
On the menu today
With the women's quarter-finals all complete, Wimbledon shifts its focus to the last eight in the tasty men's draw. Roger Federer, chasing his 18th grand slam title, opens up on Centre Court against Marin Cilic before British favourite Andy Murray goes up against French power merchant Jo-Wilfried Tsonga. On Court One, Novak Djokovic's conqueror Sam Querrey meets the big-serving Milos Raonic and Tomas Berdych takes on French rising star Lucas Pouille.
Who's toast today?
Tsonga has only beaten Murray once in their past 12 meetings and if the world number two's display against Nick Kyrgios is anything to go by, the Frenchman will not be improving his record on Wednesday. With Djokovic out of the picture, Murray has been given a golden opportunity to seal a third major triumph. It is hard to see Tsonga successfully blocking his way.
Haven't we met before?
Federer needed little reminding of his last match against Cilic. They met in the semi-finals at the 2014 US Open and the Croatian played a blinder, winning 6-3 6-4 6-4. "He blew me off the court at the US Open," Federer said. "Everything he touched went in." Federer, however, has won all five of their other match-ups, although they have never faced off before on grass.
The best of British
As well as Andy Murray, Court Two boasts three doubles matches with British involvement as Johanna Konta and Maria Sanchez open up against Timea Babos and Yaroslava Shvedova in the third round. The 2012 doubles champion Jonathan Marray is also in action as he and Canadian Adil Shamasdin play Treat Huey and Max Mirnyi for a place in the semi-finals. In the mixed doubles, British duo Neal Skupski and Anna Smith are then up against Shvedova and Aisam Qureshi. Jamie Murray and Bruno Soares are on Court 18 against Julien Benneteau and Edouard Roger-Vasselin, while on Court 12 Heather Watson and Henri Kontinen face Soares and Vesnina.
Centre Court orde rof play
Roger Federer v Marin Cilic; Jo-Wilfried Tsonga v Andy Murray.