"We are hoping that he can be back in five or six days," Sweden's doctor Magnus Forsblad was quoted as saying by Sky Sports Network.

"We have discovered a strain in one of the muscles, the positive is that it is the smallest of them."

Sweden are on the brink of qualification to the knock-out stage after clinching four points from two games.

England have already advanced with two victories over Paraguay and Trinidad and Tobago.

Both sides eye top spot to avoid Germany who are likely to finish in first place of Group A.