Prosecco, a sparkling Italian wine, is taking the fizz out of champagne in Europe. One top merchant in the UK predicts the same thing will happen in the United States.
The best-selling prosecco is priced at about $16 a bottle, half the cost of a bottle of champagne.
Champagne sales in the u-k have fallen 9 percent this year.
Sparkling wine sales -- including prosecco -- are up 6 percent.
