From velonews.com:
Italian cyclist Davide Rebellin's wish to participate for Argentina in Sunday's world cycling championship road race has been denied after a vital document did not arrive here by Friday's deadline.
Rebellin, who has been overlooked several times for national selection for Italy by coach Franco Ballerini, took Argentine citizenship recently in a bid to compete for a world title he believed he could win.
However a document which was to arrive at the championships from Argentina did not arrive by midday, prompting the UCI, the sport's ruling body, to rule the 33-year-old Gerolsteiner rider out of the competition.
and
Italian Dario Cioni, one of the 10 team members set to help in Paolo Bettini's bid for the road race gold medal here at the world cycling championships, has been replaced after returning an abnormal blood test.
The Italian cycling federation carried out the tests ahead of Sunday's 265.5km men's road race around Verona. Cioni's haematocrit level, the volume of red blood cells in the blood, was above the 50 percent permitted threshold, an indicator but not proof of illegal blood boosting.
Cioni, who rides for the Fassa Bortolo team, has been replaced by Franco Pellizotti in the 11-man team.
That really, really sucks. I was looking forward to Rebellin's performane on Sunday. He can all but kiss that World Cup title goodbye now.