The Cardinals took a 5-3 lead in the top of the 10th on a two-run double by Randal Grichuk off Arquimedes Caminero (1-1). Pittsburgh, which won in 14 innings on a homer by Andrew McCutchen on Saturday, did it again 24 hours later against St. Louis All-Star closer Trevor Rosenthal (1-2).
Starling Marte brought Pittsburgh within a run with an RBI single in the bottom of the 10th. Francisco Cervelli tied it with a single and Polanco followed two batters later with a looping single to right for his fourth hit of the game.