Everton midfielder Darron Gibson is to undergo surgery after suffering anterior cruciate ligament damage, the club have announced.
The 25-year-old was assessed by club medical staff on his return to Everton and, following confirmation an operation will be required, a lengthy lay-off is likely.
A statement on the club's website read: "The length of time the 25-year-old (will be out for) will be best determined once the surgery is completed.
"However, the scans did confirm to Everton's medical team that no additional damage was sustained to the structure of the right knee, ensuring all treatment and rehabilitation will be focused on repairing the damaged ACL."
The injury is a fresh blow for the player after missing the start of the season with a different knee problem.
After the game King said the injury "wasn't nice" and now Everton, who have made a positive start to the season mostly in his absence, will have to continue without him.