Slightly worrying .
David Moyes has revealed there are doubts over Mikel Arteta and Tim Cahill for the Boxing Day clash with Bolton Wanderers.
Arteta missed Sunday's defeat to Manchester United because of illness, whilst the Aussie goalscorer at Old Trafford had to be withdrawn from the action late in the second period after picking up a knock.
The Blues' chief admits both are now doubtful for the visit of Gary Megson's men.
He told evertonfc.com: "Tim took a knock and we had to take him off and we will have to see how he is for the next game.
"Mikel has been sick for a day and a bit and hopefully he will be back for Boxing Day."
If they fail to prove their fitness they will join Leighton Baines, Alan Stubbs and Leon Osman on the injured list.
Everton from: Howard, Wessels, Hibbert, Neville, Jagielka, Lescott, Yobo, Valente, Arteta, Cahill, Carsley, Gravesen, Pienaar, McFadden, Yakubu, Johnson, Vaughan, Anichebe.