Their star pitcher had been bested. All their momentum had vanished. To beat the Mets on Wednesday night, the Cardinals would need to topple Mets All-Star closer Jeurys Familia, which no team had done in the regular season in nearly a year. Pulling off that unlikely feat in front of a hostile Citi Field crowd, the Cardinals stole a 5-4 game and a series victory from the Mets, winning two of three in a series of two National League Wild Card contenders.