Austin great Lance Armstrong will race against two past Tour de France winners when the five-day Vuelta of Castilla and Leon begins Monday.
The seven-time Tour champion will line up against Spanish cyclists Carlos Sastre (2008) and Alberto Contador (2007) for the first time since his return this season after three and a half years in retirement.
The 37-year-old Armstrong finished 125th in the Milan-San Remo classic Saturday, his first race in Europe since his comeback from retirement..
Also taking part in the race are Levi Leiphemer, Denis Menchov and Alejandro Valverde, who testified before the Italian Olympic Committee last month in connection with the Operation Puerto doping scandal.
Armstrong has declared that his goal is to win the Tour de France again in July, but it is unclear whether he will be the top rider for Astana with Contador on the team.
