Lance Armstrong's new professional cycling team - Team RadioShack - will make their racing debut at next year's Tour Down Under in South Australia, local organizers said on Thursday.

The American made his comeback at this year's race for the Astana team but the seven-time Tour de France winner told officials he would be back in 2010 racing for Team RadioShack.

"I'm delighted to announce that Lance Armstrong will be back in Adelaide to race in next year's Tour Down Under," South Australia state premier Mike Rann said in a statement on Thursday.

"This will be the first time Lance's new team, Team RadioShack, will compete anywhere in the world."

Armstrong, a survivor of testicular cancer, retired in 2005 but returned to the saddle this year to raise awareness about the disease that almost killed him.

The 37-year-old finished third in the Tour de France behind his Astana teammate Alberto Contador but announced he was coming back for another shot in 2010 with his own team.

"I've been in regular contact with Lance and his management since he made his world cycling comeback in Adelaide at the 2009 Tour Down Under," Rann said.

"He really enjoyed his time in South Australia and has told me how much he appreciated the massive support he received from the thousands of cycling fans during the race and from the communities supporting the launch of his global cancer campaign."