Tonight in NL East: Nats vs. lowly Astros

Nationals at Astros -- 8:05 p.m.

The battle of best and worst continues on Wednesday night.

The Nationals, who own the best record in baseball, have won the first two games against the Astros in extra innings.

Monday's opener went to 12 innings and the Nationals squeezed out a 5-4 win after Kurt Suzuki's bunt single brought about a pair of throwing errors, which allowed Roger Bernadina to score the winning run.

On Tuesday, Danny Espinosa hit an RBI single in the 12th to give the Nats a 3-2 win.

Armando Galarraga (0-1, 5.23 ERA) will likely get the start for Houston. He has pitched two games since being recalled on July 28.

The Nats will go with Gio Gonzalez (13-6, 3.34 ERA), who has just one win in his last five starts. In his only lifetime start against the Astros, Gonzalez gave up two hits and two walks in seven innings in a 1-0 win on April 17.

Marlins at Mets -- 7:10 p.m.

In the series opener, the Marlins beat the Mets 4-2, continuing the Mets horrid home stretch.

The Mets haven't won at Citi Field in a month. They have lost eight straight games at home, their longest since 2007. They haven't lost nine straight at home since 2004.

Mets manager Terry Collins said Jason Bay is no longer the full-time leftfielder. Bay, who signed a $66 million, four-year deal before the 2010 season, is batting .071 in his last 14 games, bringing his mark on the season down to .157.

Information from the Associated Press was used in this report.