Dundee United's Christian Kalvenes faces up to four weeks on the sidelines after sustaining a calf injury in Sunday's 2-0 win over St Mirren.

The 20-year-old Norwegian left-back picked up the knock as he helped United move into third place in the SPL.

United manager Craig Levein said: "We are assessing how bad it is but if it's a tear he'll be out for a few weeks.

"That would be a big blow to him and to us because I think he's been superb since the start of the season."