Denmark striker Jon Dahl Tomasson is unlikely to play in the World Cup second round clash against England on Saturday, local DR News said on its web site on Thursday.
Tomasson suffered a groin injury in Denmark's 2-0 victory over defending champions France, it said.
The Danish striker has been the side's most potent weapon in securing their group A victory at the expense of Senegal, Uruguay and France.
Apart from scoring the 67th minute second goal for Denmark which sent France packing for home, he converted a 16th minute penalty on their way to a 1-1 draw with second-placed Senegal and netted twice in the opening 2-1 win over Uruguay.
Tomasson, 25, now with Dutch League Feyenoord, had a short spell at English premier league Newcastle but failed to make his mark, netting only three goals in 23 appearances, and was sold by the club in 1998 for 2.5 million pounds ($3.67 million).
Midfielder Stig Tofting, who plays for another premier league club, Bolton, is also doubtful with an injury to his left foot, DR News said.