Berbatov picked up the injury against Sheffield United

Tottenham striker Dimitar Berbatov could be sidelined for two weeks with a groin injury.

The Bulgaria international played for an hour against Romania on Saturday after a pain-killing injection.

But he has been ruled out of their Euro 2008 qualifier against Slovenia on Wednesday because of the injury.

"I still don't know exactly how long I'll remain out but perhaps it'll be 10 days to two weeks," said the 25-year-old forward.

"It's a pity that I won't be able to help my team mates in the Slovenia match.

"I suffered the injury during Tottenham's match against Sheffield United. I thought it was over, but unfortunately I felt some pain before the game with Romania."

Berbatov will almost certainly miss Tottenham's league game at Manchester United on Saturday and probably the Uefa Cup tie at Slavia Prague on Thursday, 14 September.

Meanwhile, Tottenham boss Martin Jol has warned his side they face a stiff test against the Czech outfit in their first-round tie.

He said: "Czech football is at a high level and the national team is probably as good as the England team. It will be tough but I'm positive.

"They play 4-4-2, they have good strikers, one is on the fringe of the national team and the other scored a couple of goals and is a very good header of the ball.

"They have a good left winger, the captain in midfield is experienced and at the back Martin Latka, who was at Birmingham last season, he looked comfortable on the ball.

"In short, they have a decent side who play for each other."