NEAL Ardley admits AFC Wimbledon are entering the unknown ahead of Saturday's crucial clash with York City.
The Dons have already faced the Minstermen three times this season, winning twice and drawing the other.
However, Gary Mills was axed as manager this week following a disastrous run of 11 games without a win.
Former Northern Ireland boss Nigel Worthington has been appointed his successor and will look to address their alarming slide down the table.
And Ardley says the Dons are in the dark over what to expect.
He said: “They have a new manager now so they're going to be a bit of an unknown entity.
“If it was Gary Mills still in charge we would have a good idea seeing as we've played them three times already.
“But when a new manager comes in it's difficult to know what to expect.
“You always get a lift when a new man comes in, but we have to concentrate on ourselves and make sure it doesn't have a bearing on our performance.”
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