Burnley and England goalkeeper Nick Pope faces up to three months out of action with a shoulder injury, sources have told ESPN FC.
Pope suffered a dislocated shoulder during last week's Europa League draw with Aberdeen following a collision with Sam Cosgrove.
The 26-year-old was forced off after just 14 minutes with the injury and Pope went to see a specialist earlier on Monday to find out the full extent of the injury.
Scans have revealed that Pope will need to undergo surgery on the injured shoulder and is likely to miss the first three months of the new Premier League season.
The news is a major blow for Burnley boss Sean Dyche as Pope had established himself as Burnley's No.1 keeper last season and worked his way into the England squad following an outstanding campaign.
Pope was part of England's World Cup squad in Russia and won his first cap against Costa Rica in a friendly in June.