Captain Steven Gerrard called on England to complete the job of World Cup qualification against Poland on Tuesday night after defeating Montenegro at Wembley.
England claimed a 4-1 win over Montenegro which means victory over Poland will secure a place in Brazil as Group H winners.
"The result will give us a huge lift and it's good for confidence going into the final game," Gerrard said.
"But the message is that the job's half done. Poland are a very good team. They're going to come and do us no favours, like Montenegro, try to make it really difficult for us.
"It's important that we perform to the same level as on Friday night."
England have secured a place in the play-offs at worst with the win, but know that will be their fate if they fail to beat Poland.
Ukraine's 1-0 defeat of Poland maintained their position one point behind Roy Hodgson's men, with just a clash against minnows San Marino to come.
The match in Kharkov finished prior to half-time at Wembley and England's players were aware of the result - and the added pressure - at the interval, when they were being held 0-0 by their visitors.
"We did (know the result) and it wasn't helpful," Gerrard said.
"The rumours were circulating which added that little bit more pressure.