On Tuesday, the Houston Astros defeated the New York Yankees in the AL Wild Card Game, with the help of former Oakland A's including closer Luke Gregerson and slugger Chris Carter. On Wednesday, the NL edition will take place as the Pittsburgh PIrates host the Chicago Cubs.
It's tough to figure out the emotional underdog in this one. The Astros/Yankees game was something of a David vs. Goliath matchup, at least in terms of franchise histories -- we all still remember the Yankees' recent run of greatness, whereas the Astros are a recent-punchline-turned-upstart. However, the NL game isn't as clear.