WASHINGTON (AP) -- Jay Heaps' first-half goal gave New England a 1-0 victory over D.C. United on Saturday night, and the Revolution extended United's scoreless streak to three games.

United (6-11-2) has not scored in 331 minutes -- since Bobby Convey's tally in the 39th minute against Columbus on July 13 -- and has the worst offense in the league with just 19 goals in 19 games.

New England (7-12-1) has the worst defense in the league and has allowed 11 goals in its last three games, but United were unable to break through.

D.C. was so desperate for offense that Eddie Pope, a defender for his entire career with United and the U.S. national team, was substituted in the 78th minute to play striker.

Heaps scored his second goal of the season in the 16th minute, deflecting a shot off of United defender Ivan McKinley into the right corner of the net.

United tried numerous new players on offense and had excellent chances to score throughout the game, tallying 18 shots.

Salvadoran forward Eliseo Quintanilla, signed earlier in the week by D.C., started his first game.

Ben Olsen, who has not played for United since August 16, 2000 because of ankle injuries, was brought into the game at halftime to play forward. Both created opportunities but neither was able to score.

When Pope entered the game for Olsen, United moved its entire team into New England's half of the field, but Revolution goalkeeper Aidan Brown remained strong.

Brown finished the game with seven saves and his second shutout of the season -- both against D.C.

In the 89th minute, D.C. believed it had a sure penalty kick when New England defender Joe Franchino appeared to get his hand on a cross inside the penalty box, but no call was made.