MLB's first wild-card series is underway. Four teams could be eliminated today.(either against Houston/New York or Atlanta/L.A.).

It's the first weekend of the postseason! And four teams could be eliminated today. The first round of MLB's wild-card round will be played in a best-of-three format.

With 12 teams qualifying for the playoffs starting in 2022, four best-of-three series will determine which clubs advance to their respective league's divisional round.

On Saturday, the Tampa Bay Rays will try to keep their playoff hopes alive against Cleveland. The Seattle Mariners also face elimination as they attempt to knock out Toronto.

The New York Mets are trying to avoid a home sweep against the San Diego Padres, and then it's the Philadelphia Phillies eyeing a series win against St. Louis Cardinals at Busch Stadium.

Follow all of today's games below, with start times, pitching matchups and starting lineups as they're announced. Plus in-game updates and takeaways after each game is concluded.

MLB is in full swing this weekend, with four wild-card teams playing their first playoff games in a best-of-three series.

As the postseason field expands to 12 teams for 2022, four series will determine which teams advance to the American League Division Series against either the Astros or Yankees.

The National League Division Series against either the Braves or Dodgers with each team playing two games against another team.

The first-ever wild-card series is in full swing. Today, four teams will play for their playoff lives.

The first-ever wild-card series is in full swing. Today, four teams will play for their playoff lives.

The winner will advance to the ALDS and face either the Yankees or Astros. The loser will be eliminated.