Going into the series, the Phillies hold a robust seven-game lead in the division, and SportsLine gives them a 94.3% chance of winning the NL East for a second straight year. The Mets, though, have a chance to whittle down that lead heading into the final weeks of the season.

Among the several crucial series this week that could help decide the MLB playoff picture, arguably the biggest will take place at Citi Field, where the Philadelphia Phillies bring a commanding seven-game lead in the NL East into a three-game set against the rival New York Mets that begins on Monday night.