Aberdeen have an unchanged squad for the clash.
Midfielder Yoann Folly is the only outfield absentee after being hit by a chest infection.
Goalkeeper Jamie Langfield remains out but underwent a successful procedure in hospital on Monday as he looks to return from the brain seizure he suffered in the summer.
Dundee United are likely to be without defender Sean Dillon.
The Irishman has not recovered from a calf problem so looks like missing out and he could be joined in the stand by Keith Watson, who is doubtful with a twisted ankle.
Danny Swanson is available after returning from Scotland duty, but long-term absentee Scott Severin remains sidelined with a broken leg.
Aberdeen (from): Gonzalez, Jack, Considine, Mawene, Arnason, Osbourne, Foster, Milsom, Clark, Fallon, Vernon, Magennis, Megginson, Fyvie, McArdle, Pawlett, Chalali, Brown.
Dundee United (from): Pernis, Douglas, Dixon, Watson, Kenneth, Gunning, Smith, Allan, Flood, Rankin, Armstrong, Robertson, Mackay-Steven, Hilson, Dow, Russell, Daly, Dalla Valle, Banks, Swanson.
