Sir Bradley Wiggins said it was "emotional" watching Lance Armstrong admit to using performance-enhancing drugs during an interview with Oprah.
The 2012 Tour de France champion said that Armstrong, 41, deserves everything he gets and raised questions about the disgraced cyclist's claims of a clean return to the sport in 2009.
Wiggins, 32, who will ride the Giro d'Italia and reportedly support teammate Chris Froome in the 2013 Tour, said:
Speaking to ITV News' Sports Editor Steve Scott
Wiggins, who watched the interview with his seven-year-old son Ben, said he felt "quite smug" at the end of the show and was glad he could tell his child he had won "the Tour clean."
Armstrong's doping has seen him stripped of all results from August 1, 1998, which resulted in Wiggins' finish in the 2009 Tour de France being upgraded from fourth to third.