[paganel]

The Williams sisters had a lot more money and access to better nutritionists than Karsten Braasch, who was placed a lowly ~200 in the ATP rankings (and he used to smoke cigarettes, also). Nevertheless, he beat them 6-1 6-2. From here https://en.wikipedia.org/wiki/Karsten_Braasch:

> Braasch competed in a "Battle of the Sexes" contest against Venus Williams and Serena Williams at the 1998 Australian Open when he was ranked 203. A decade and a half older than the sisters, Braasch was described by one journalist as "a man whose training regime centred around a pack of cigarettes and more than a couple bottles of ice cold lager."[2] He nonetheless defeated both sisters, playing a single set against each, beating Serena 6–1 and Venus 6–2.