British rockers Mumford & Sons were planning to cancel their headlining slot at Glastonbury if Ted Dwane wasn't well enough to play. The musicians axed a number of dates in the U.S. after the bassist was admitted to hospital for an emergency operation to remove a blood clot from his brain, but they bounced back to appear at Britain's iconic music festival just three weeks later. The rockers have now revealed they were planning to cancel their slot at Glastonbury, as well as the rest of their summer (13) festival gigs, if Dwane failed to recover in time because they wouldn't consider taking to the stage as a three-piece. Frontman Marcus Mumford tells BBC Radio 1's Newsbeat, "We would have cancelled the whole summer because it's way more important that he's OK. It was serious and he needed help and he got help and he smashed it. We play, the four of us, or we don't play. The experience kind of galvanised that opinion for us." Mumford insists his friend is now making a good recovery: "I think it was especially worrying for him and his girlfriend and his family. It was stressful but the doctors were amazing and the whole thing went as smoothly as it could have when that kind of thing happens. Thank God he's fine."