Yup, the Philadelphia Phillies, in first place in the NL East, come to town tonight to begin a three-game series at Citi Field.

But it's not like the Phillies (26-17) are running away with the division. The Atlanta Braves are just 3.5 games out of first. And even though the Mets are in last place, they're still only five games back of the Phillies.

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Ken Davidoff gets you ready for the big series by unveiling his five keys and predictions. Click here to take a look.

The Mets hope to carry their success from the Subway Series into tonight's game against the Phillies. Arthur Staple has the story here.