Not that it wasn't already important for a team trying to make the playoffs for the first time in seven years, but the Milwaukee Brewers have a big opportunity in front of them Sunday when they take on the San Francisco Giants at Miller Park. After two wins to start the three-game series, the Brewers have a chance for their first sweep since July 2-4 against the Minnesota Twins. More important, a victory would allow Milwaukee to at least maintain its lead over St. Louis for the top National League wild-card spot, which grew to 2 1/2 games after St. Louis dropped a second straight game to the Detroit Tigers on Saturday.