Phil Jagielka believes that Gabriel Agbonhalor will be Aston Villa's biggest threat if Christian Benteke doesn't play.
Benteke made his comeback from a long-term injury against Manchester City and he is likely to start against the Toffees, but Jagielka is expecting to be busy even if the Belgian is not in Paul Lambert's starting line-up.
This is because he feels that Agbonlahor has the capabilities to test out his side's backline and he admits they will have to be on top form if they are to pick up the three points.
"We are not sure how fit he [Benteke] is going to be. But even if he's not playing, Gabriel Agbonlahor up front means its still going to be a busy afternoon," Jagielka explained to Everton's official site.
"They like to play on the counter-attack, but we are fully aware of their threats. We need to make sure we nullify that and show some of our own.
"They will enjoy coming to Merseyside again having had a good result across the park at Liverpool (Villa won 1-0). They seem to have found a bit of confidence this season and found a way of playing. It seems to have taken the manager a little longer to instil that in his players but they have started off well.
"They are getting one or two players back fit - Christian Benteke will have had a couple more weeks of training. They are going to be very dangerous but we know we need to think about ourselves."
Benteke has been out for a considerable amount of time after rupturing his Achilles and his return is a major boost for Villa.
The powerful front-man is their finest player and they look much more of a threat with him in their team.
That said, Lambert's side's form has been good even in his absence.
The side are in seventh position in the Premier League as things stand and they will be looking to build on this at the weekend against an Everton side who have struggled.
The Toffees are locked in the bottom-half at the moment, and Jagielka admits that an up-turn in form is needed quickly if they are going to be able to meet their expectations.
"We need to go out full throttle and hopefully put in a good performance, cut out the silly mistakes that we keep making most games and come out with three points," he said.