The Arsenal star heaped praise on the Three Lions after last night's 3-0 win, insisting the team's top players are all bang on form.
He said: "There are some great players on form for us at the moment.
"We were so quick up front. The squad itself is the strongest we have had for a long time.
"There is plenty of competition for places and everyone has to be on their toes.
"We are not too fussed about anyone else and we are concentrating about ourselves.
"It is always nice to know there may be a little gap but the job is not over yet and we want to have a great game at Wembley. At times, our form has not been the greatest there but hopefully we can take this form into Tuesday.
"We will not take Wales for granted, as they have some class players and it will be a great game.
"It was one of my better England performances for a long time. Certainly since my hat-trick in Croatia.
"My form for England has not been the same as my form for Arsenal but hopefully I am starting to get there. I am enjoying my football and I think it shows."