Armstrong says 2010 Tour de France will be his last

NEW YORK - Seven-time Tour de France winner Lance Armstrong has announced he is making his final appearance in the Tour next month.

The 38-year-old American, two years into a second comeback, revealed the news through his Twitter website just days before he begins his campaign for an unprecedented eighth victory in the gruelling event.

"And yes, this will be (my) final Tour de France. It's been a great ride," Armstrong tweeted.