Model Ivana Knoll -- known as the "World Cup's Hottest Fan" -- believes Qatar's harsh clothing guidelines have been completely relaxed while hosting the soccer competition ... telling TMZ Sports her attention-grabbing outfits have been a fan favorite with the locals.
Knoll has been sporting her own sexy custom wardrobe at the stadium throughout the opening stages of the tournament ... leaving many to question whether she'd face punishment for showing too much skin.
We spoke with Knoll about her fashion statements at the World Cup .