BRIGHTON captain Gordon Greer could miss this weekend's trip to face leaders Derby County.
The Scotland international missed his first League game of the season against Fulham on Saturday with a knee injury and he may miss out again.
Manager Sami Hyypia said: "We need to go with how he feels and see what happens. He hasn't trained for a few days now, so it might be difficult for him to play at the weekend.
"It is a pity that we don't have everyone fit to play, but we need to try and cope with the situation and that will give someone else the opportunity to shine on the pitch."
Brighton were beaten 2-1 in Greer's absence and dropped into the division's relegation zone.
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