SAINT GERVAIS, France, July 16 (Reuters) - Jonas Vingegaard and Tadej Pogacar have made such a huge impression in the Tour de France that, in a sport that was marred by doping scandals, doubts about their performances have arisen but Denmark's defending champion welcomes the scepticism. On Sunday, Pogacar and Vingegaard clocked 18:27 on the final climb, beating four-time Tour winner Chris Froome's record by 42 seconds. "So yes, I fully understand the questions we're getting about it (our performances)," said Vingegaard. In 2006, Floyd Landis became the first Tour winner to fail a drugs test during the race after testing positive for the male sex hormone testosterone. The Kazakh’s Astana team left the Tour and sacked Vinokourov, who denied any wrongdoing, and Tour leader Michael Rasmussen was then fired by his Rabobank team during the race for lying about his whereabouts in training.

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Persons: SAINT GERVAIS, Jonas Vingegaard, Tadej, France's Guillaume Martin, Dane, Carlos Rodriguez, Vingegaard, Chris Froome's, Marco Pantani, Joux, it's, Lance Armstrong, Jan Ullrich, Giro, Ivan Basso, Floyd Landis, Alexandre Vinokourov, Vinokourov, Michael Rasmussen, Julien Pretot, Ken Ferris Organizations: Tour de, Slovenian, Cycling, Kazakh’s Astana, Rabobank, Thomson Locations: France, Slovenian, Puerto