Motherwell defender Shaun Hutchinson has been ruled out of Friday night's Clydesdale Bank Premier League clash with Hibernian.
The centre-back suffered a hamstring injury just before the halfway point of Motherwell's 1-0 defeat by Hearts on Sunday and is likely to miss more than one game.
Manager Stuart McCall said: "Hutchie will be out for a couple of weeks. We'd be very delighted if he were available for the St Johnstone game the week after but I think that might even be pushing it too early."
Motherwell are looking to end a run of three consecutive defeats, which followed a disappointing end to their trip to Aberdeen when they conceded a two-goal lead in the final six minutes.
McCall's side suffered successive 2-0 defeats against the Old Firm before Danny Grainger's long-range strike gave Hearts victory at Tynecastle. But McCall is refusing to read too much into their run, which has seen them drop from top spot in the SPL to sixth place.
"We looked at the run of league games coming up, Aberdeen and Hearts away and Celtic at home, are as difficult as you can possibly get," he said.
"We can't get too high with a couple of wins and likewise with a couple of defeats.
"I'm sure every manager with their strongest 11 will be confident of getting three points in this division. It's consistency, it's getting that little break."
Motherwell are hoping for a more successful Friday clash with Hibs than occurred last December, when a floodlight fire forced a half-time abandonment. But there have been several recent meetings between the sides that spark happier memories.
McCall said: "We've had some great encounters with Hibs here in the last couple of seasons. Everyone will remember the 6-6 game, I was actually sitting watching it."