Brian Carroll scored early in the first half and the Philadelphia Union held off D.C. United in a 1-1 draw on Sunday in Washington in a match that featured two disallowed goals and three ejections.

Carroll put the Union (7-12-3) ahead in the eighth minute when he bundled the ball over the line after United’s Emiliano Dudar headed away a previous shot.

D.C. United (11-8-4) tied it in the 71st on an own goal set up by Dwayne De Rosario’s free kick. De Rosario also appeared to send D.C. United into the lead in an 87th minute on a penalty kick, but the attempt was ordered retaken because of encroachment by a United player.

D.C. United midfielder Branko Boskovic was sent off for wrestling a Union player to the ground during protests that followed, and three minutes later De Rosario missed the retry high.

Referee Mark Geiger also red-carded Dudar in second-half stoppage time for a slide tackle from behind.

And he sent off Philadelphia’s Sheanon Williams moments after that for a second yellow card for a challenge attempting to stop a United breakaway.

United thought they tied it in the 64th minute when Nick DeLeon reached a loose ball after a goalmouth scramble and drove it into an open net. But Geiger whistled for an apparent foul by United forward Hamdi Salihi during the scramble on Union goalkeeper Zac McMath.

D.C. United evened it seven minutes later when De Rosario’s free kick caromed off defender Amobi Okogu and into the net.

Red Bulls 3, Timbers 2 — Heath Pearce’s tiebreaking goal in the 83d minute gave New York a victory over Portland in Harrison, N.J.

Tim Cahill got his first MLS goal and Kenny Cooper also scored for New York, which rallied from a two-goal deficit. The Red Bulls improved to 9-0-3 at home, remaining the league’s only team unbeaten at home.

Bright Dike and Darlington Nagbe scored for Portland.

Dynamo 2, Crew 2 — Adam Moffatt scored in the 82d minute to lift host Houston to a draw with Columbus. Brad Davis also scored for Houston, which extended its home unbeaten streak to 20 games. Cole Grossman and Eddie Gaven scored for the Crew.