ST. LOUIS — As the first arm up in a bullpen effort on Wednesday night, Cardinals lefty Matthew Liberatore delivered perhaps his strongest performance of the season. Called upon to start Game 2 of a doubleheader against the Atlanta Braves, Liberatore completed six scoreless innings and struck out eight batters in a 4-1 win over the Braves. His innings total set a season-high while the strikeouts were a career high. Liberatore came into Wednesday having pitched in 27 games with 22 of those in relief.