England manager Roy Hodgson insists that the required point against Ukraine on Tuesday night is "not a given."
"It really is an absolute away game, with 46,000 Ukrainians who want to see their team continue in the competition," he said, speaking to ITV Sport.
But the 64-year-old appeared optimistic about his team's chances should they progress through to the quarter-finals, where they'll face Spain, Croatia or Italy.
"When you're out of the group [stage], then it becomes a real cup competition, and I think we'll grow in stature rather than shrink."
Winger Theo Walcott, whose goal and assist were crucial to England's 3-2 victory over Sweden last Friday, is a doubt for the Ukraine game after feeling "a slight tightness in his hamstring."
"It's certainly nothing serious," says Hodgson, but he'll "have to wait and see how it recovers over the next 24 to 36 hours."
Meanwhile Wayne Rooney, who missed England's first two group games due to suspension, is "very focussed, very committed," according to his boss.
"It's good that we have him back - he was a player that I was of course counting on very much in the England set up and it's been unfortunate that we haven't had him for the first two games," says Hodgson.