Football NFL Playoff Rules
NFL Wildcard Weekend lives up to name – The Purbalite
Third wild card creates opportunity for another playoff team
Dallas Cowboys playoff picture: NFC East, No. 1 seed, wildcard spot scenarios - Blogging The Boys
Philadelphia Phillies playoffs: Here's where to buy Wild Card round tickets for series at Citizens Bank Park
ELF Playoff Push: Three teams clinch as Wild Card Race heats up
MLB: Astros hit 3 homers, boost wild-card hopes with win over Mariners
Explaining MLB's new 6-team per league playoff format
NFL playoff predictions: 6 coaches, execs pick wild-card winners - The Athletic