Terrors face Hibs test
Dundee United are in action when travelling to joint-leaders Hibernian on Sunday afternoon (kick-off 12.45pm).
The visitors are likely to again be without defender Barry Douglas after missing their midweek win at Motherwell because of ankle trouble.
Otherwise, French defender Gregory Vignal remains sidelined with a hamstring injury.
The Terrors approach the contest on the back of successive away league wins and a dramatic home draw with Celtic.
"It's a tough match but games between the two teams have always been good at Easter Road," manager Peter Houston told BBC Scotland. "They're normally quite tight and I would expect this one to be no different.
"They're top of the table on merit so we'll need to be ready for the challenge which awaits us on Sunday," he added. "We've got to make sure we're organised and do the basics well like we have done in recent weeks. We'll have to be at our best to win and we're under no illusions about how tough its going to be for us."
Hibs defender Tim Clancy is still struggling with a groin injury and midfielder Gary Deegan is also out.