Marcus Willis heads out to meet Roger Federer today knowing 769 ranking places and almost $100 million set them apart, and he will do so with a welter of goodwill behind him - especially from those who saw him at his heaviest.
By his own admission, Marcus Willis used to be out of shape, weighing in at 120kg - almost 19 stones. He called himself 'Cartman' after the South Park character and was happy to play up to the nickname, according to fellow Brit Liam Broady.
The pair have played on the Challenger Tour together and Broady said: "Marcus is a comedian. He's the funniest guy on the tour, I think. I think he has that reputation among pretty much all the nationalities.
"Those challengers I played against him in the States, he was drinking Pepsi on court, eating Snickers on the court. That's when he got the nickname Cartman."
Perhaps one way to get the better of Federer could be to offer him a strip of Milka over the Centre Court net...
On the menu today
Away from Willis, Novak Djokovic is back against Adrian Mannarino, while Milos Raonic goes up against Andreas Seppi. In the women's draw, ninth seed Madison Keys has a potentially tough assignment against Kirsten Flipkens while Simona Halep faces Francesca Schiavone. Also on the menu: rain.
Mannarino saw off Brit Kyle Edmund on Monday but is almost certain to bow out against Djokovic. The two have never met but stopping the Serbian is as close to an impossible job as there is in tennis at the moment.
Haven't we met before?
Grigor Dimitrov's clash with Gilles Simon could be well worth a watch. Dimitrov wants to fight his way back up the rankings after a dip, but trails the consistent Simon 5-1 in their head-to-head.
The best of British
Two Brits head out into battle in the form of Willis and Dan Evans. Willis will surely enjoy his moment in the sun, while Evans takes on Alexandr Dolgopolov.
Centre court order of play
(Play starts at 1300)
Agnieszka Radwanska v Kateryna Kozlova, Novak Djokovic v Adrian Mannarino, Roger Federer v Marcus Willis.