In MLB standings, what is the WC column?

[Atamasama]

Red Sox and Yankees both won, eliminating any chance for doubt,

[ekedolphin]

@Railer13

Both wild-card teams can be from the same division. Wild-card teams play each other in a one-game playoff, with the winner advancing to play the division winner with the best record in the league. And, yes, the wild-card winner could potentially play a division rival in the Divisional Round.

Both of those things are guaranteed to happen in the American League this year. The Red Sox and Yankees finished tied for second in the AL East and were the two wild-cards, with Boston hosting the Yankees because of tiebreakers. Winner will face the AL East Division champion, Tampa Bay.