Former Yes star Jon Anderson has suffered another setback in his recovery from a respiratory illness that forced him out of the band - he now needs surgery to correct a severe sinus issue.

In a new Facebook post, the singer assures fans he will be "a different person" after the operation, insisting, "I will be better very soon."

It is not yet clear if his latest ailment will affect summer (15) dates he has planned with violinist Jean-Luc Ponty, as the Anderson-Ponty Band.