The England boss joined the 4,000 people who have backed The Sun's campaign to save the country's 2018 bid.
"This is the best country where you can play football. The transport, the fans, the stadiums, the hotels, everything is good. This is why I think it will be fine for England," he said.
The paper launched Save Our Bid this week, calling on FIFA to ignore former bid chairman Lord Triesman's corruption claims.
Boxing ace Ricky Hatton joined that campaign by signing the e-petition, saying: "England is where the beautiful game began. Bring it on."
Oasis star Noel Gallagher, 42, speaking at the launch of Umbro's I'm in campaign, said: "England should win. It's a travesty we have only had it once."
Other celebs backing The Sun's bid include former England captain Alan Shearer, TV host Adrian Chiles and Fatboy Slim star Norman Cook.