Everton boss Roberto Martinez feels his side's double-header against Lille could well prove a "final" in terms of the way Europa League Group H pans out.
The Toffees take on the French outfit at the Stade Pierre Mauroy this evening, with the reverse fixture following on November 6.
In a pool also featuring Russians FK Krasnodar and German side Wolfsburg, after two rounds of matches Everton are top with four points and Lille third with two.
And speaking at his press conference to preview the contest, Martinez said: "Lille are a team we respect and admire.
"They have had a few injuries and probably they are seeing tomorrow's game as the most important of their campaign.
"For us it is exactly the same, and it could be some sort of a little final within the group stage due to the importance of these games. I was a big admirer of the way Lille played last season - in some of the games they were really brave and really open.
"This season they have started well but are waiting to really click, and that is our worry."
Everton will be without Steven Naismith and Leon Osman for the fixture, the pair having being rested.
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