Everton will be without Dominic Calvert-Lewin for the trip to Wolves on Tuesday because of a hamstring injury.
Calvert-Lewin, the joint-third highest scorer in the Premier League this season with 11 goals, sat out the weekend's FA Cup win over Rotherham.
And Toffees manager Carlo Ancelotti expects to be without the England international again.
'Calvert-Lewin is unavailable. Hamstring problem,' he said.
Asked if he had an idea how long he would be without his leading scorer for, the Italian said: 'No. I think soon he can recover.