Juninho Pernambucano has told RMC "it is impossible" to hold the World Cup during the searing heat of the Gulf State's summer, citing his experience of playing in Qatar.
Average temperatures in Doha soar beyond the 40 degrees Celsius mark during June and July when the World Cup, scheduled to be staged by Qatar in 2022, would normally be held.
Juninho, 38, spent two years with Qatari club Al Gharafa after leaving Lyon in 2009, and though he had nothing but praise for the nation, the former Brazil international acknowledged the scorching summer weather was not suited to top-class football.
He said: "I spent two years in Qatar and felt really good there, I didn't have a problem with either my personal life nor football. It was two magnificent years for me and my family, but it's impossible to have a World Cup in Qatar in June and July. Even if they have the money and are capable of putting everything in place, it's impossible to play with that heat.
"I don't think it's practical. There's no football season during summer, the league starts in September. If FIFA chose Qatar for 2022, they already must have known it was impossible to play in July."
Juninho's comments come after FIFA secretary general Jerome Valcke told French media the 2022 tournament would be held between November and January. However, FIFA's Executive Committee is not expected to make a decision on the issue until after next summer's World Cup in Brazil.