PHILADELPHIA – One of the Nationals’ best wins of the season was made possible by Dylan Crews and Daylen Lile’s offensive and baserunning exploits in the top of the ninth, not to mention by PJ Poulin’s two perfect innings of relief to close out an unexpected, 5-4 victory. But none of that would have been possible if not for Cade Cavalli’s quality start, which underscores an important point.

Three of the Nats’ five starters are giving them a chance to win right now. The other two are not. During this nice run against the Phillies and Mets, the team has gone 5-1 in games started by either Cavalli, MacKenzie Gore or Brad Lord, but 0-2 in games started by Mitchell Parker or Jake Irvin. And guess who starts the final two games of this series?

Parker has got to give the Nationals more than he has of late. The lefty has allowed 22 earned runs over his last 16 innings, the team going 0-4 in those starts. His ERA has skyrocketed to 5.83. And when he faced these same Phillies six days ago, he didn’t even make it out of the second inning. Somehow, some way, Parker has to figure out how to at least give his team a chance tonight.

The good news: The Nats beat up on Aaron Nola the same day the Phillies were beating up on Parker. They scored six runs off the veteran right-hander, all of them coming in the third inning, to knock him out of the game. They will be looking to do the same tonight, and perhaps provide enough run support to make up for a potentially shaky start by Parker.

WASHINGTON NATIONALS at PHILADELPHIA PHILLIES
Where: Citizens Bank Park
Gametime: 6:05 p.m. EDT
TV: MASN2, MLB.tv
Radio: 106.7 FM, 87.7 FM (Spanish), MLB.com
Weather: Clear, 80 degrees, wind 12 mph out to center field

NATIONALS
LF James Wood
SS CJ Abrams
1B Josh Bell
2B Luis García Jr.
DH Daylen Lile
RF Dylan Crews
C Drew Millas
3B Brady House
CF Robert Hassell III

LHP Mitchell Parker

PHILLIES
SS Trea Turner
LF Kyle Schwarber
DH Bryce Harper
C J.T. Realmuto
3B Alec Bohm
RF Nick Castellanos
CF Harrison Bader
2B Edmundo Sosa
1B Weston Wilson

RHP Aaron Nola