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An 88th-minute header from Ljungberg gave his side a dramatic 1-0 win on Thursday to put Sweden on the brink of the knock-out stage and send Paraguay home.
"It will be a massive game against England and both teams will want to win to top the group," the Arsenal star said in the post-match press conference.
"It's going to be very difficult because England are a very good team, but we're looking forward to it."
England also waited till the closing stages of their match against debutant Trinidad and Tobago to grab a 2-0 victory that booked them a ticket to the round of 16.
Sweden, with four points from two games, need a point out from England's encounter to advance but they eye a victory to avoid hosts Germany who are on the verge of Group A summit. Trinidad also still have slim chances to qualify.
Ljungberg said his last-gasp strike was important to give the Swedish enthusiastic crowd something to cheer about.
"We needed the three points tonight. Plus, it was important for the fans because you saw the support we had here," he said.
"It made me very proud and I would have been disappointed not to give something back to those fans."