Armstrong's new American sponsor to be announced on Thursday evening

Lance Armstrong riders near yellow jersey Alberto Contador on the Côte d'Araches. David Millar (Garmin-Slipstream) rides in front of teammate Bradley Wiggins.

Lance Armstrong riders near yellow jersey Alberto Contador on the Côte d'Araches. David Millar (Garmin-Slipstream) rides in front of teammate Bradley Wiggins. (Image credit: Sirotti)

The American sponsor of Lance Armstrong's new team for 2010 will be announced on Thursday evening.