Annecy, France ? Lance Armstrong and RadioShack are forming a new cycling team that will compete in next year’s Tour de France.

The seven-time Tour winner, who returned to cycling after 31/2 years of retirement, also said Thursday he expects to take part in running and triathlon events for Team RadioShack beginning in 2010.

“RadioShack has agreed to partner with us on this venture and ensure that this partnership and this team stays alive for years to come, continues to be at the head of the peloton,” Armstrong said in a video on his Livestrong Web site.

The 37-year-old Texan is riding this year’s Tour with the Kazakh-funded Astana team. He was in third place overall after Thursday’s time trial, 5 minutes and 25 seconds behind teammate Alberto Contador.

“It’s a huge opportunity for us as an organization and as a cancer survivor. It’s pretty mega,” Armstrong added after the stage in Annecy.

In a statement released by RadioShack, Armstrong said he has had “a great season so far” but is hoping for an even better one next year.

“To be able to compete for an American team comprised of the world’s top cyclists, supported by the best coaches and staff — I couldn’t be happier,” he said.

Armstrong did not indicate who else might join Team RadioShack, but he’s expected to build a squad fully devoted to his ambitions. Armstrong has spent much of this year’s race in support of Contador, who is expected to join another team next season.