Game 102 lineups: Nats at Giants

SAN FRANCISCO - Hello from AT&T Park, simply one of the finest venues in baseball, where the Nationals and Giants tonight open a four-game weekend series between a pair of first-place clubs sporting identical 59-42 records. Between the strong matchup on the field and the specter of Monday's trade deadline looming, this is obviously a big weekend.

The Nationals come here with some significant question marks, but Dusty Baker has chosen to answer one of those (who is leading off and playing center field) in the form of Trea Turner. Yes, Turner is making his third straight start in center field. And since there's no DH while playing in the National League park, that means Ben Revere takes a seat, with Jayson Werth (and his 30-game streak of reaching base) in his usual position in left field.

Oh, by the way, tonight's leadoff hitter and center fielder for the Giants? None other than Denard Span, who enters tonight's game hitting .256 with a .333 on-base percentage, well below his totals from the last two seasons in D.C. I'm hoping to catch up with him in a little while.

Tanner Roark gets the ball for the Nationals, with Cy Young contender Johnny Cueto on the mound for San Francisco. It'll be a late night back home on the East Coast, so hope you've started brewing the coffee already ...

WASHINGTON NATIONALS at SAN FRANCISCO GIANTS
Where: AT&T Park, San Francisco
Gametime: 10:15 p.m. EDT
TV: MASN2, MLB.tv
Radio: 106.7 FM, XM 186/869, MLB.com
Weather: Mostly clear, 59 degrees, wind 13 mph out to center field

NATIONALS (59-42)
CF Trea Turner
RF Bryce Harper
2B Daniel Murphy
C Wilson Ramos
LF Jayson Werth
3B Anthony Rendon
1B Ryan Zimmerman
SS Danny Espinosa
RHP Tanner Roark

GIANTS (59-42)
CF Denard Span
LF Angel Pagan
2B Joe Panik
C Buster Posey
SS Brandon Crawford
1B Brandon Belt
RF Mac Williamson
3B Conor Gillaspie
RHP Johnny Cueto