Youssouf Mulumbu could make his third debut for Kilmarnock on Saturday after signing for yet another spell at Rugby Park.
The Congo international’s arrival is perfectly timed for Alex Dyer, who will be without midfielder Alan Power for the visit of Dundee United. The Irishman damaged his hamstring last week against Rangers and has been ruled for “a few weeks”.
The striker was named in Steve Clarke’s Scotland squad this week, but Mellon insists he will take no risks with the striker, who will only play if he has definitely shrugged off a troublesome ankle knock.
Ryan Edwards has returned to training after sitting out United’s last two games with an hamstring strain, while Liam Smith (ankle) should return after the international break. Paul McMullan (hernia) remains out.