Playoff hopes alive, Cardinals conclude series with rival Cubs

(Photo credit: David Banks-USA TODAY Sports)

The Chicago Cubs learned Saturday afternoon how fleeting momentum can be for teams on the outside looking in on the National League wild-card race.

On Sunday night, the Cubs will face a team -- the St. Louis Cardinals -- that is in a much more favorable spot in the wild-card standings.

The Cubs lead the key four-game set between the longtime NL Central rivals 2-1 heading into