In January, German newspaper Bild, external reported that jumpers were injecting their penises with hyaluronic acid before being measured for their suits. Hyaluronic acid, which is not banned in sport, can be used to increase penis circumference by one or two centimetres. If your suit has a 5% bigger surface area, you fly further," said FIS ski jumping men's race director Sandro Pertile. Asked about the claims in Bild at a press conference at the Milan-Cortina Winter Olympics, Wada director general Olivier Niggli said: "I am not aware of the details of ski jumping, and how that could improve performance. Clearly entertained by the question, Wada's Polish president Witold Banka joked: "Ski jumping is very popular in Poland so I promise you I'm going to look at it."