Everton winger Yannick Bolasie will have surgery after suffering a serious knee ligament injury in Sunday's 1-1 draw with Manchester United.
The summer signing from Crystal Palace looks set for a long spell on the sidelines after scans revealed he required an operation.
The club tweeted: "Yannick Bolasie to undergo knee surgery after scans confirmed a serious ligament injury against @ManUtd. Come back stronger, Yannick."
Everton confirmed on their official website the 27-year-old, who was forced off in the 68th minute of the Goodison Park clash as the Toffees hit back to snatch a late point, had suffered anterior cruciate ligament damage to the right knee.