Winston-Marshall, Ben Lovett, Ted Dwane and Marcus Mumford of Mumford & Sons at the 2013 Brit Awards.
Mumford and Sons bassist Ted Dwane has been hospitalised and requires surgery on his brain after he was found to have a blood clot on his brain.
Ted had been feeling ill for several days before seeing a doctor, and scans revealed a blood clot on the surface of his brain.
The band has released a statement that said he was due to undergo surgery, and was expected to recover quickly from the surgery.
Mumford and Sons' bassist Ted Dwane.
Mumford and Sons has been forced to postpone three shows in the US in the coming days.
The band is set to play Glastonbury, Bonaroo, Fuji Rock and Splendour in the Grass Festivals in the next month – it said there were no plans to cancel or postpone any other appearances on the tour.
Here's the band's statement in full:
Our friend and bandmate Ted has been feeling unwell for a few days, and yesterday he was taken to a hospital to receive emergency treatment. The scans revealed a blood clot on the surface of his brain that requires an operation. Ted is receiving excellent care and we are being assured that he will recover quickly from surgery.
Sadly we have to postpone three upcoming headline shows planned for this week in Dallas on Tuesday 6/11, Woodlands on Wednesday 6/12, and New Orleans on Thursday 6/13. All dates will be rescheduled and will be announced as soon as we can; all tickets for this week's events will be honoured at their rescheduled dates. We have no plans to cancel or postpone any other appearances along this current tour.
We're all wishing Ted a speedy recovery.
Mumford & Sons