Cyclingnews.com seem to think so:
Ullrich, Cipollini to the Vuelta?
Although world champion Mario Cipollini's participation is not absolutely certain, his Domina Vacanze-Elitron team has received an invitation to race by the organisers of the Vuelta a España. Last year Cipollini used the Vuelta to hone his form prior to the world championships in Zolder, Belgium. However, this year's parcours in Hamilton, Canada will clearly not suit the sprinting talents of Cipollini, and his racing program for the remainder of the year has yet to be revealed.
Jan Ullrich, on the other hand, is likely to use the Vuelta for the same purpose, to prepare for the world championships. Prior to his dramatic return to the fore in the Tour de France, Ullrich had hinted that this year's Tour would serve as preparation for a Vuelta bid in September, and eventually a challenge to Lance Armstrong in France in 2004. After his second place in the Tour, the Vuelta may take on a different focus, however Ullrich- winner of the Vuelta in 1999- has typically been capable of maintaining his fitness through the end of the season, and this year's parcours in Hamilton could provide the German with the opportunity to take the road world championship title.
Ullrich and Bianchi directeur sportif Rudy Pevenage are expected to determine a plan for the remainder of the season in the coming weeks. Ullrich is expected to hit the World Cup circuit at the HEW Cyclassics in Hamburg this weekend, as well as the GP Zurich on August 17.