British cyclist Chris Froome has said that he is determined to win the Tour de France for the second year in a row.

The 28-year-old believes that his triumph could help restore credibility to the sport following recent drug scandals involving Lance Armstrong and Alberto Contador.

"I'd like to think if I can go back and do it again it will bring some credibility back to the sport," BBC Sport quotes him as saying. "I know for a fact some people were dubious about the results I got last [season] and Bradley (his Team Sky teammate Sir Bradley Wiggins) the year before.

"I know myself that my results aren't going to be stripped, but it will take time before people will see they are going to stand.

"I think we're through the toughest time of it now. It is really a minority of riders breaking the rules now and getting caught, but we are still living in that post-doping era where we are having to deal with a lot of negativity."

Froome has been included in the shortlist for this year's BBC Sports Personality of the Year award.