Former British basketball star John Amaechi, who is one of the world's most high-profile gay athletes, was also critical of Blatter's original comments, telling BBC Radio 5 live that it was the most childish response he could imagine.
However, Blatter, who is in Abu Dhabi for the Club World Cup, does not foresee any difficulties, saying: "You see in the Middle East the opening of this culture, it's another culture because it's another religion, but in football we have no boundaries.
"We open everything to everybody and I think there shall not be any discrimination against any human beings be it on this side or that side, be it left, right or whatever.
"If they want to watch a match somewhere in Qatar 2022, I'm sure they will be admitted to such matches."
Qatar was the surprise winner of the race to host the 2022 World Cup, beating Australia, Japan, South Korea and the United States when the 22-man Fifa executive committee
in Zurich on 2 December.
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