U2'S first world tour in three years may have to be pushed back because of Bono's bike crash injuries.
The star had to have two operations after a collision in New York left him with multiple injuries.
He suffered a fractured eye socket and broke his shoulder blade in three places. His left elbow was also shattered into six pieces.
The star crashed in Central Park as he swerved to avoid another cyclist on November 16.
Bono was treated at the New York-Presbyterian/Weill Cornell Medical Centre and Hospital where he had three metal plates and 18 screws inserted during a five-hour operation.
However his doctor, Dr Dean Lorich an orthopaedic trauma surgeon, said that a full recovery is expected though he will need extensive physiotherapy.
It is expected that it will take around three months for the singer to recover.
The fact that Bono plays guitar while performing means that he will need to have made a full recovery before doctors allow him to return to the stage.
It has emerged that the iconic band were due to begin a global tour next June. It will be their first tour since their 360 tour, which began in Madison Square Garden in New York in 2011.
This time around it is believed that their new tour will also kick off in North America - though no dates have yet been announced.
But, depending in the frontman's recovery, insiders are worried that the dates may have to be pushed back.
U2 are famous for their sell-out stadium extravaganzas but sources say that this time around they might try something different with smaller gigs in smaller venues.