Sweltering sports fans who seek refuge from the soaring temperatures with a soft drink other than one made by Coca-Cola will be told to leave the banned refreshment at the gates or be shut out. High on the list of blacklisted beverages is Pepsi, but even the wrong bottle of water could land spectators in trouble."

Fans will be allowed into the Olympic complex if they are drinking Avra, a Greek mineral water owned by Coca-Cola, which paid $60 million US for the privilege of being one of the main sponsors. Officials are under orders not to let in rival brands' bottles unless the labels are removed.