Cleveland left-hander Parker Messick will make his major league debut in the heat of a playoff race. The Guardians announced they will promote Messick, their second-round pick in the 2022 draft, to start the final game of a three-game set against the Arizona Diamondbacks on Wednesday afternoon in Phoenix.

Toronto entered the game with a five-game lead over the Boston Red Sox in the AL East standings, while the Yankees sat 5.5 games back. The Blue Jays are pushing for their first division title in a decade, and losing Guerrero for any length of time would make that climb much harder.

Los Angeles Angels shortstop Zach Neto has been named the American League Player of the Week for his performances from Monday, Aug. 11 to Sunday, Aug. 17.

The Athletic has live coverage of around the league on MLB Opening Day. The American League East may not be the juggernaut it once was, but it’s no cakewalk, either. All five teams fashion ...

The National League dates to 1876, the oldest surviving professional sports league in the world, according to MLB historian John Thorn. The American League dates to 1901.

The Detroit Tigers, Houston Astros, and Seattle Mariners are three of the leading teams in the AL and are neck and neck in the chase for the World Series.

League City, making its fourth straight trip to the American Legion World Series, made it all the way to the championship game before falling short.

The Toronto Blue Jays suffered a 4-1 loss against the Chicago Cubs on Wednesday night at Rogers Centre, falling to 70-51 on the season. Despite the loss, the Ja