Mair Returns From Injury
The former Stockport and Dundee man has been out since February 2005 after damaging his knee ligaments.
Striker Jim McIntyre (slipped disc) and player-boss Craig Brewster (broken foot) are out for the season.
Midfielder Barry Robson is suspended while defender Paul Ritchie is still absent after suffering from a haematoma in a leg injury.
United (from): Stillie, Duff, McCracken, Archibald, Mulgrew, McInnes, Miller, Kerr, Goodwillie, Brebner, Mair, Fernandez, Samuel, Samson, Kenneth, Robertson, Cameron, Gardiner.