Warner, the president of the CONCACAF federation and one of the most powerful men in football, will meet FA chairman Lord Triesman and Premier League chairman Sir Dave Richards tomorrow and that is the message he will pass on to the bid chiefs.

He also stressed that, contrary to some reports, he and CONCACAF's two other FIFA executive committee members have not decided to back England's bid for 2018 or 2022 - nor any other beyond the USA's.

Warner, in London to speak at the Leaders in Football conference tomorrow, told Press Association Sport: "I think England are creeping along. It's better than standing still but I would have thought they would be galloping by now.

"I have a private meeting with Lord Triesman and Sir Dave Richards tomorrow and if they want my advice I will give it - I'm happy to give it to anyone.

"I am not being unkind. I have been a FIFA executive committee member for 27 years, I have seen many other bids, and while England has all the attributes to be a worthy host country I am not convinced they are making the most of those attributes.

"Spain is doing quite well and some people have even expressed the belief to me that if the vote were taken now they would win. There is of course a long time to go, and many things can change."

There have been suggestions that CONCACAF would support England's after Triesman agreed for Fabio Capello's side to play a friendly in Trinidad and Tobago, Warner's home country, but he insists that they have yet to make up their minds.

Warner added: "I want to disabuse anybody of the view that CONCACAF is in the FA's corner.

"I have a good working relationship and I have some empathy with them but we need to sit back and see what all the bids come up with. We are looking for those who find new ways to be innovative for football."

Mexico's decision to withdraw from the race for 2018 and 2022 has left the USA as the sole bid from CONCACAF and favourites to win one of the tournaments with the other going to Europe.

But he warned them not to be complacent - and said Chicago's humbling in the contest for the 2016 Olympics had shown the danger of relying on the Barack Obama factor.

Warner said: "In my humble opinion I believe the USA was favourites even before Mexico's withdrawal, which was the right thing to do because their economy couldn't carry it.

"I think though the Barack Obama euphoria has now died down and we saw what happened with Chicago, so I don't think that mystique will have a great role to play.

"The USA must concentrate on its strengths and how it would stage a great tournament."

FIFA's executive committee will vote on the 2018 and 2022 hosts in December next year. Russia, Holland/Belgium, Australia, Korea, Qatar, Japan and Indonesia are also bidding.