Uruguay striker Luis Suarez says he has a "barbarian" desire to beat England.
The Liverpool striker, who missed his country's shock 3-1 group D defeat by Costa Rica, also appealed for Uruguayan fans to have trust even though there is no word yet whether he will play in tonight's game.
"I have a barbarian desire to help my teammates, to be able to go onto the pitch," Suarez told Ovacion Digital.
Missing the first game "left me with savage impotence", the Premier League goalscoring machine added.
Suarez had surgery on a knee meniscus three weeks ago and he said there would have been a "great risk" if he played in last Friday's game. "But now several more days of rehabilitation have passed and I'm better."
Suarez insisted he was ready to play if needed.
"I'm 100 per cent. If it wasn't the case, I wouldn't play. I always said I'd come back once I felt fine, once I was at 100 per cent, and now I am.
"Maybe I'm lacking some football, or rhythm, that's obvious because I've been inactive, but physically I'm in great shape."
Suarez also released a Twitter message to fans in which he said the team was determined to reach the next round, at England's expense.
England lost their first game to Italy and are also desperate to win to get back into the qualification race.
"There have been some difficult days since the loss to Costa Rica. Wanted to thank you for the support given to us," Suarez said.
"Stay calm. We are going to give our best in the match against England."