The AL kicked off Tuesday's four-game wild-card slate with decisive wins by the Rangers and Twins.
The NL's first contribution to the day was an affair that came down to the final inning in Milwaukee. Ultimately, the Arizona Diamondbacks took a 1-0 series lead on the Milwaukee Brewers with an offensive comeback and a shutdown performance by their bullpen.
Later, the Phillies, led by seven one-run innings from Zack Wheeler, cruised to a fairly stress-free 4-1 victory over the Marlins in Philadelphia.
The teams will be back at it Wednesday, with the Diamondbacks and Phillies looking to advance to the NLDS and the Brewers and Marlins trying to keep their playoff dreams alive.