PITTSBURGH — James Wood led off the game with a home run and Jake Irvin pitched seven scoreless innings to lead the Washington Nationals to a 3-0 victory over the Pittsburgh Pirates on Tuesday night.

Irvin (1-0) allowed three hits, struck out six and walked one as the Nationals snapped a three-game losing streak. The Pirates never got a runner past second base in losing for the fourth time in five games.

Jose A. Ferrer and Kyle Finnegan pitched one inning each to finish the four-hitter. Finnegan notched his sixth save in as many opportunities.

The shutout came a night after the Pirates recorded a season high in runs scored while beating the Nationals 10-3.

Mitch Keller (1-2) gave up three runs and six hits in six innings while striking out three and walking two.

Wood hit a drive to the concourse in right-center field on Keller’s sixth pitch of the game to give the Nationals a quick lead with his sixth homer of the season. The score remained 1-0 until the sixth when Nasim Nunez hit a two-run single with two outs.

Paul DeJong was hit in the face by a pitch from Keller with two outs and the bases empty. Dylan Crews singled and stole second before Nunez delivered.

DeJong was 0 for 2 and is hitting .204 in 16 games this season.

He signed with the Nationals as a free agent during spring training after hitting 24 home runs with the Chicago White Sox and Kansas City last season.

Nunez and Nathaniel Lowe had two hits each for the Nationals.

Jack Suwinski had two hits for the Pirates and made a fine running catch on the left-field warning track.

Key moment

The Pirates had runners on first and second while trailing 1-0 in the fifth inning, but Irvin got Isiah Kiner-Falefa to ground into an inning-ending double play to ill any chance of a rally.

Key stat

Wood hit the first leadoff home run in his 96-game career.

Up next

Mitchell Parker (2-0, 1.96 ERA) will start for the Nationals against Bailey Falter (0-2, 7.20) this evening in a matchup of left-handers in the third game of the four-game series.

Endy out

The Pirates placed catcher/first baseman Endy Rodriguez on the 10-injured list with a lacerated right index finger.

Rodriguez was catching when he got hurt during Monday night’s 10-3 victory over Washington. He was hit on the hand by a pitch in the dirt by Paul Skenes, and the injury required five stitches.

The Pirates recalled right-hander Chase Shugart from Triple-A Indianapolis.

Rodriguez has made nine starts at first base and five at catcher this season, hitting .178 with two RBIs.

The injury leaves the Pirates thin at two positions.

Henry Davis is their only healthy catcher, with Joey Bart missing his fourth straight game Tuesday because of lower back soreness. Catcher Abrahan Gutierrez joined the team from Indianapolis but was not immediately added to the active roster.

Primarily a catcher, Rodriguez had been playing first base while Spencer Horwitz recovers from right hand surgery. Utility player Enmanuel Valdez started at first base for a second straight night on Tuesday.