Phillies (60-70) vs. Nationals (75-55)
7:05 p.m. on CSN
After salvaging the weekend series at Citi Field against the Mets with a win Sunday, the Phillies move on to face the NL East-leading Nationals for three games at home.
Let's take a look at the series opener:
1. East Coast bias
The Phillies' series against the Mets was the first of five straight series against division opponents. The Phils have a total of 16 straight games vs. NL East teams through Sept. 12.
Complete coverage of the Fightin' Phils and their MLB rivals from NBC Sports Philadelphia.
They host the Nationals and Braves this week, then have three in Miami and four in D.C. next week.
Of the 32 remaining games on the Phillies' schedule, only six are against teams outside the NL East. The Pirates come to town for four games Sept. 12-16 and the White Sox are at Citizens Bank Park for a two-game series Sept. 20-21.
Overall, the Phillies have mostly held their own against the NL East this season, going 23-27. They're 8-5 against the Braves, 6-7 vs. the Marlins, 5-7 vs. the Mets and 4-8 vs. the Nationals.
Despite trailing the Marlins by seven games, the Phils' division record is one game better.
2. Important night for Thompson
All eyes will be on Jake Thompson Monday night in his fifth major-league start. The first four have been disastrous, with Thompson going 1-3 with a 9.78 ERA. He's allowed 35 baserunners and 21 runs in 19⅓ innings. He's walked 13 and struck out 13.
A consistent theme in Thompson's first four starts has been an inability to get hitters out with men on base. His opponents have a .386 on-base percentage, three homers, two doubles and a triple in 45 plate appearances with men on base. Thompson just hasn't been able to throw strike one out of the stretch.
After Thompson's last start, Phils manager Pete Mackanin said that he'd talk with GM Matt Klentak about the plan the rest of the season for Thompson. Nobody wants to see the 22-year-old pitching prospect go out there and get shelled every fifth day. It could do some long-term damage to his confidence. Hitters and pitchers are different in that way. A 22-year-old position player can come up and try to correct his mistakes on a nightly basis. A 22-year-old pitcher who comes up and struggles has to sit and think about it for four nights before having an opportunity to bounce back.
The Nationals are another tough offense so this could be another short night for Thompson. Washington is second in the NL in home runs and in the top-four in runs, walks, OBP and slugging percentage. And the Nats have been hot in August, hitting .287 with an .817 OPS as a team.
3. Underrated Roark
The Phillies face 29-year-old Nationals right-hander Tanner Roark, who's had an excellent season, going 13-7 with a 2.99 ERA in 168⅓ innings.
Roark had a solid year in 2014, going 15-10 with a 2.85 ERA and 1.09 WHIP, but was moved to the bullpen last season when the Nats lengthened their rotation by signing Max Scherzer. Roark, perhaps undeservedly so, was the odd man out. But after doing what he's done this season, he won't be demoted again any time soon.
Roark has shut the Phillies down three times this season, going seven innings in all three starts and allowing no runs in two of them. Roark is actually tied for the MLB lead with Jake Arrieta with seven games of seven-plus innings and no runs.
Roark has approached the Phillies differently each time he's faced them this season. In the first start, he threw a ton of sinkers and mixed in curveballs and changeups. In the next start, he tripled his usage of the slider and threw fewer sinkers. In the third start, he doubled the frequency of four-seam fastballs.
His heater averages about 93 mph.
4. Harper heating up
Bryce Harper broke out last year and won an MVP, then hit to start this season before going into a lengthy slump. His numbers are still nowhere near where they were at this time in 2015, but he is finally on a hot streak.
Over his last 20 games dating back to July 31, Harper has hit .342/.433/.579 with seven doubles, a triple, three homers and 18 RBIs. On the year, he's hitting .254/.387/.471 with 23 homers and 74 RBIs. He had 81 extra-base hits last season and has 43 this season.
Harper is still being pitched around. He has 92 walks and 89 strikeouts. He leads the majors with 16 intentional walks.
He's destroyed the Phillies the last two seasons, hitting .341 with 11 homers, 24 RBIs, 24 walks and 24 strikeouts in 27 games.
5. This and that
• Cesar Hernandez has hit .345 with a .417 on-base percentage over his last 230 plate appearances, but also has a .478 slugging percentage over that span. He's given the Phillies pretty much everything from an offensive perspective for more than two months.
• It's incredible that Hector Neris has made a National League-leading 65 appearances this season, 31 with the Phillies leading by between 1-3 runs, and has just two blown saves. (Keep in mind a pitcher is given a blown save even if he appears earlier than the ninth inning. Setup men often have a handful or more.)
• Neris has 84 strikeouts. Based on his current pace, he's projected to finish with 105, which would be second-most ever by a Phillies reliever. Dick Selma had 153 in 1970, albeit in about 50 more innings than Neris will finish with.
• Daniel Murphy does not stop. He's hitting .343/.387/.607 in his first year with the Nats with 37 doubles, 25 homers and 98 RBIs.