Uruguay coach Oscar Tabarez accepts that Luis Suarez may not be as fit as he was for Liverpool during their Premier League campaign last season.
The La Celeste striker declared himself as "100%" fit for the game against England on Thursday, despite undergoing knee surgery at the end of May.
However, Suarez, who plundered 31 goals for the Reds last term, has not played since the final day of the Premier League season on May 11.
Tabarez told reporters: "[Suarez] has recovered very well, but if he plays we must consider possibility he's not as well as he was in the Premier League.
"Obviously a training session is not the same as a match."
Uruguay lost their first game 3-1 to Costa Rica on Saturday.
No Data Analysis info
Germany
Switzerland
Hungary
Scotland
Spain
Italy
Croatia
Albania
England
Denmark
Slovenia
Serbia
Austria
France
Netherlands
Poland
Romania
Belgium
Slovakia
Ukraine
Portugal
Turkey
Georgia
Czech Republic