It is not yet known when Donald will be fit to perform

The 39-year-old singer was treated in hospital and missed three shows on the band's European tour after hurting himself last week.

Donald, who was discharged from hospital on Saturday, is expected to rejoin his Take That bandmates in Hamburg, Germany on Wednesday.

But a spokesman said it is unclear when he will return to the stage.

'Very soon'

But he added: "The early indications are that it will be very soon.

"Mark, Gary and Jason all visited Howard after the show in Vienna on Friday night along with the dancers and musicians to help cheer him up.

"They're all looking forward to him joining them this week in Germany."

Take That performed as a threesome in Cologne on Monday

The group - whose other members are Mark Owen, Gary Barlow and Jason Orange - are currently on their Beautiful World European tour which began in Belfast on 11 October and ends in Manchester on 20 November.

The tour follows on from their chart-topping comeback album of the same name and its UK dates sold out in three hours when tickets went on sale in March.

Six additional concerts were added to the foursome's arena tour, who sealed their comeback earlier this year with a Brit award for best single Patience.

The chart-topping song was followed by their second comeback number one Shine - the 10th song of their career to go to the top spot.