What happened: The Boston Red Sox and Chicago Cubs will play a split doubleheader on Friday instead of their scheduled Sunday game. Major League Baseball altered the weekend schedule due to the incoming weather.

Why it matters: The shift condenses the series to ensure the games are played ahead of the expected rain. The weather-driven adjustments come during the final week of the regular season.

What to watch: MLB will evaluate the forecast in the coming days to determine if Saturday's scheduled night game at Fenway Park needs to be changed.