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Team news ahead of Sunday's Scottish Premier League clash between Dundee United and Celtic at Tannadice (kick-off 12.45pm).
Dundee United skipper Jon Daly is a doubt after getting a kick on the calf in the midweek cup defeat against Hearts.
Defender Gregory Vignal is still sidelined after his recent hamstring tear.
But winger Gary Mackay-Steven is in contention for a start after coming off the bench against Hearts in his long-awaited comeback following knee surgery.
Scott Brown is in the Celtic squad.
The Hoops skipper has been battling with a hip problem this season and it was believed that manager Neil Lennon might leave him out with a view to next Wednesday's Champions League clash with Barcelona at Parkhead.
Georgios Samaras (ankle) and James Forrest (hamstring) are unlikely to feature.
Dundee United (from): Cierzniak, Watson, Dillon, Gunning, McLean, Flood, Rankin, Ryan, Russell, Daly, Dow, Armstrong, Millar, Gardyne, Robertson, Skacel, Gauld, Douglas, Hilson, Banks, Mackay-Steven.
Celtic (from): Forster, Matthews, Lustig, Wilson, Rogne, Mulgrew, Ambrose, Izaguirre, Brown, Kayal, Wanyama, Ledley, Commons, Forrest, Samaras, Miku, Hooper, McCourt, Zaluska, Watt.