Lengkepan kalimah di handap ieu: Rosenthal usum rookie suksés dibawa kana postseason, nyieun manéhna instrumental di Cardinals 'playoff ngajalankeun sabab diperlukeun pitulung bullpen. Dina debut playoff ngalawan Washington Nationals dina National League Division Series (NLDS), manéhna nyitak kaluar sisi, retiring Jayson Werth, Bryce Harper, jeung Adam LaRoche bari ngamungkinkeun hiji tunggal ka Ryan Zimmerman. Genep deui penampilan scoreless dituturkeun salaku Cardinals maju ka
National League Championship Series (NLCS). Dina sakabéh, Rosenthal struck kaluar 15 tina total 30 batters nyanghareupan di 2012 playoffs.