Rubuta ci gaba ga wannan sakin layi - Rosenthal ya ci nasara a kakar wasa ta farko a cikin kakar wasa, yana mai da shi kayan aiki a cikin 'yan Cardinals' playoff yayin da suke buƙatar taimakon bullpen. A wasan farko da ya buga da Washington Nationals a gasar zakarun kasa (NLDS), ya buga bangaren, ya yi ritaya da Jayson Werth, Bryce Harper, da Adam LaRoche yayin da ya ba da izini ga Ryan Zimmerman. Sauran wasanni shida ba tare da wata alama ba yayin da Cardinals suka ci gaba zuwa gasar zakarun na kasa
(NLCS) ya yi. A cikin duka, Rosenthal ya buga 15 daga cikin duka 30 batters fuskanci a 2012 playoffs.