Manchester United striker Ole Gunnar Solskjaer faces several weeks on the sidelines after suffering a hamstring injury in Wednesday's Champions League defeat at FC Copenhagen.
However, United boss Sir Alex Ferguson is relieved as he initially though the Norwegian had picked up another knee problem.
Solskjaer has scored six goals in 11 appearances this term after missing most of the previous two seasons with a serious knee injury that almost forced him to retire from the game.
Ferguson said: "It's unfortunate for Ole. It's a hamstring and he'll be out for a few weeks. But I'm actually quite happy.
"Given his previous history of knee problems, I was a bit concerned when he came off but, fortunately, it's only a hamstring."
The 33-year-old has spent the last decade at Old Trafford since his transfer from Molde and has scored 123 goals in 346 appearances for the club.