The Bluebirds were beaten 2-0 by Brighton on Tuesday night which saw their lead at the top of the npower Championship cut to five points.
Winger Craig Conway is pushing for a start after impressing as a substitute in the defeat to Gus Poyet's men, just the second time Cardiff have lost on home soil this season.
And the Scot could replace Craig Noone or Tommy Smith in the starting line-up should Mackay decide to freshen things up against Dean Saunders' struggling side.
Ben Turner came through his return to action after injury unscathed while Fraizer Campbell played for 84 minutes as he continues to build his match fitness following his move from Sunderland.
