An additional postseason berth granted to a team that does not win its division. Should not be capitalized when standing alone: The Guardians and Orioles are in a heated race for the wild card.; The Falcons and Cardinals are vying for the final wild-card spot in the NFC.
Capitalize when written as part of the formal name of a playoff round or of the league/conference: The Kansas City Chiefs will face the Jacksonville Jaguars in the AFC Wild Card Round.; The Milwaukee Brewers wrapped up an NL Wild Card berth.
