THE BRONX - Opening Day for the New York Yankees isn't just big for fans, but it's also big for business.

According to the 161st Street Business Improvement District, merchants near Yankee Stadium bring in between $7 million and $11 million during the first game of the season alone. Many say they doubled their staff in antipcation for the big game, which has the Bronx Bombers pitted against their longtime rivals, the Boston Red Sox.

Small business owners even started cashing in on the excitement before the first pitch. Vendors lined up early along River Avenue, selling everything from beer to baseball caps.