Burnes, Wainwright engage in pitchers’ duel as game headed to extras tied 1-1 Box Score It was a pitchers’ duel in St. Louis on a balmy Saturday night. With two aces on the mound, the Brewers and Cardinals couldn’t get much offense going the entire night. Corbin Burnes lasted seven innings for the Crew, giving up just one run on four hits with zero walks and six strikeouts. The Cardinals’ run marks the first earned run for Burnes across three starts (21 innings) against St. Louis this season, good for a 0.43 ERA. Despite the strong start, Burnes was outpitched…