Mark Cavendish will not compete in the world championships. (Bryn Lennon/Getty Images)
Cavendish, who withdrew from the Tour of Missouri earlier this month with a lung infection, will now concentrate on the rest of the season, a British Cycling spokesman said.
Ian Stannard will replace Cavendish in the nine-man team for this Sunday's elite men's race in Switzerland.
British Cycling also confirmed that 21-year-old Jonathan Bellis, who was in the provisional list for the world championships, is stable in hospital in Florence after being placed in a coma following a bad training crash at the weekend.
