Confident England football fans have taken a gamble - booking flights and hotels for a potential World Cup last-16 tie in Mexico City, even as the Three Lions still need to overcome the Democratic Republic of Congo.The national side is scheduled to play the African nation in their round of 32 clash in Atlanta on Wednesday, with many supporters expressing confidence in Englands chances. A victory at the Mercedes-Benz Stadium would propel England into a last-16 match on Sunday against co-hosts Mexico at the Estadio Azteca, one of world footballs most famous venues. Mexico secured their place in the last 32 by beating Ecuador 2-0 on Tuesday.Reflecting the high stakes, one fan commented that the team "dont really deserve to be here" if they fail to win their crucial match against the Democratic Republic of Congo.Ryan Woods, 33, from Portsmouth, said: We should go through.Its a tough game, but if we cant win tomorrow we dont really deserve to be here, do we.But it will be a hard game weve struggled when weve had to break teams down but we should be all right hopefully. On to Mexico.Mr Woods said securing top spot in the group against Panama had caused him more anxiety because it determined whether England would play in Atlanta or Toronto.Weve got our flights booked to Mexico, but theyre refundable anyway which is good, he said.It was more the flights here we were a bit nervy at half time in New York.I was frantically looking at prices to Toronto and whatnot, but it worked out so its all good.England fans at a bar (James Manning/PA)He continued: The plan is, assuming we get there, is to go up to the quarters and then well just get priced out of carrying on.Ill be paying it off over a couple of years I think.Im just about to go to my house and spend loads of money on that as well.Its not been too bad but the semi and the final was just too much of a push to do the rest of it, which is unfortunate.The Manchester United fan said the tournament has really started now it has entered the knockout stages.He said: With the only exception being the Scots, we only really had to win one game to go through anyway.So nows the go time really.Temperatures in Atlanta have climbed above 30C this week, but another supporter, Jack Goodwin, said England have no excuses for Wednesdays game due to playing in an air-conditioned stadium.The 34-year-old, who used his 40,000 house deposit to fund his World Cup trip, was confident of a round of 16 tie against Mexico.He said: Were in an air-conditioned stadium tomorrow its at midday but its in an air-conditioned stadium so no excuses.Not if, when we make it through tomorrow, its going to be difficult against Mexico because humidity, climate itll be tough, itll be really tough against the Mexicans.Speaking before Mexicos game against Ecuador alongside his 34-year-old friend Harrison Killick, he continued: Were torn he (Harrison) doesnt have a Mexico ticket so he wants the Ecuadorians to win tonight because it means ticket prices will plummet.Whereas we want Mexico to win because, its a bit greedy, but we want to play Mexico in Mexico City.The pair said tickets for an England-Mexico tie were selling for around for thousands of dollars.Currently as it stands I think theyre going for about 3,000 US dollars right now, Mr Goodwin said.Bristol City fan Lee Lewis, 36, said he had also already booked flights to Mexico.Speaking about Englands chances of progressing, he said: Ive got no choice now, have I?Im in too deep.He added: I think theyll do well I think well be through to the next stage after this game.England fans Danny Preston and Tom Preston (James Manning/PA)Danny Preston, 59, and Tom Preston, 28, from Chesterfield said despite England struggling against defensive teams, they were confident of the Three Lions chances on Wednesday.Danny said: I think weve got a good chance, a very good chance.I think these will have the low block again which were going to struggle with, but I think as we progress and if the games get more competitive, I think England will come through.His son added: I think well beat them tomorrow, obviously.I think itll be a struggle again but as we get through, when play better teams we can open up a bit more and play better against them rather than the likes of these tomorrow.The father and son duo said they believed there will be better games now the tournament has entered the knockout stages.Danny said: Its getting a bit more interesting.Tom added: Good teams have got to go up against each other now so there should be some better games.