Game 161 lineups: Nats vs. Marlins

It's yet another gray, dreary, rainy day here in the nation's capital. If I didn't know any better, I would swear I've been in a coma the last 12 years and MLB actually relocated the Expos to Portland instead of Washington.

As has been the case all week, the Nationals will do everything they can to try to get today's game in. The Dodgers, if you weren't up real late last night, lost 9-3 to the Giants. So the Nats still hold a two-game lead with two to play, and thus their magic number to clinch home field advantage in the National League Division Series is one. A win today over the Marlins or another L.A. loss to the Giants (they'll be playing simultaneously at 4:05 p.m. EDT) will wrap things up and ensure Games 1, 2 and (possibly) 5 of the NLDS take place at Nationals Park.

Tanner Roark makes his final tune-up before the playoffs today, seeking to wrap things up on a high note. This is kind of crazy: Roark was 15-10 with a 2.85 ERA in 2014, the last time he was a full-time starter. Entering today's game, he's 15-10 with a 2.86 ERA. You can't say the guy isn't consistent.

Wei-Yin Chen starts for Miami, a good opportunity for the Nationals to face a lefty in advance of Clayton Kershaw and Rich Hill next weekend. The Nats just faced Chen last week at Marlins Park and scored three runs in 4 1/3 innings against him.

MIAMI MARLINS at WASHINGTON NATIONALS
Where: Nationals Park
Gametime: 4:05 p.m. EDT
TV: MASN2, MLB.tv
Radio: 106.7 FM, XM 183, MLB.com
Weather: Rain, 69 degrees, wind 5 mph in from center field

NATIONALS (93-67)
CF Trea Turner
LF Michael A. Taylor
RF Bryce Harper
3B Anthony Rendon
1B Ryan Zimmerman
2B Wilmer Difo
C Pedro Severino
SS Danny Espinosa
RHP Tanner Roark

MARLINS (79-80)
2B Derek Dietrich
SS Miguel Rojas
CF Christian Yelich
1B Justin Bour
RF Jeff Francouer
3B Chris Johnson
LF Destin Hood
C Jeff Mathis
LHP Wei-Yin Chen