Pirates first baseman Pedro Alvarez went 1 for 2 at the plate with four walks in Pittsburgh's 3-2 loss to the Cardinals in 14 innings on Sunday.
Alvarez did his damage in the 12th inning when he took a Samuel Tuivailala pitch over the right field wall for a solo shot, his fifth of the season. Alvarez is now hitting .227 with 12 RBI in 75 at-bats this year.