Yadier Molina homered for the game's only run and Adam Wainwright fired seven splendid innings to help the St. Louis Cardinals begin defense of their National League pennant with a 1-0 victory at Great American Ball Park. Wainwright (1-0) held the Reds to three singles and racked up nine strikeouts while working around four walks to barely outperform counterpart Johnny Cueto in a terrific Opening Day pitchers' duel. The two aces were engaged in a scoreless deadlock that Molina broke with a one-out homer in the top of the seventh. Cueto (0-1) was otherwise outstanding as well, yielding just three hits and the game's only run while fanning eight over his seven-inning stint. Molina and Matt Adams each collected two hits for St. Louis, which managed just five as a team.