D.C. United’s maddening inability to forge consecutive victories continued Thursday night with a 3-2 loss to the Philadelphia Union before 17,963 at PPL Park in Chester, Pa.

The last time DCU won back-to-back matches: June 2009. United would’ve been satisfied with a point. Instead, it left with none and now needs to get a result Sunday at Columbus.

It wasn’t a good night for center back Brandon McDonald, who was beaten on the second and third goals and collected a yellow card that pushed him over the limit. He’ll sit out Sunday’s match. (Is Dejan Jakovic ready to return from a hamstring injury?)

Dwayne De Rosario departed with a knee ailment in the 61st minute. He’ll be re-evaluated Friday but he’s optimistic about playing this weekend.

Meantime, United President Kevin Payne fumed.

“He’s the best player in the league and he doesn’t get protected. He gets kicked every game, every time the ball is played to his feet and plays it forward, he gets fouled. It was several times tonight and he gets knocked out of the game. The same thing happened in Seattle. It’s pretty obvious what teams are doing; it shouldn’t be a surprise to anyone. The whole premise going into the season was [the league was] going to protect those guys, and it’s not happening.”

Said DeRo: “It’s to be expected, but I don’t think there’s anything malicious in it.”

My match report is available here.