A blown call by the referees at the end of the Pittsburgh-San Diego game had quite the effect on gamblers.

The Steelers won the game 11-10, but a late touchdown that would have made the final score 17-10 or 18-10 was nullified after an officiating mistake. The Steelers were favored by 4 points, so that blown call kept the Steelers from covering the spread and cost gamblers millions of dollars.

"Anyone who had a bet on the Pittsburgh side and thought they had won weren't too happy," said John Avello, director of the race and sports book at the Wynn resort.

Avello said there might have been $10 million bet on the game statewide, and many times more than that in illegal bets around the country and in offshore Internet betting sites. There was more money bet on Pittsburgh, he said, especially in parlay bets.

Click here to read more.