Dube, replacing Sainey Nyassi (international duty), ended his scoring slump, producing the final goal of the game in the 81st minute, his first in 11 months.

“He’s obviously learned a lot,’’ Revolution coach Steve Nicol said of Dube. “He picked up some good positions to stop them going forward and to get forward himself. And [he scored] a great goal.’’

Dube totaled 10 goals in all competitions last season, but had not converted since Oct. 3 (1-1 tie at Colorado).

“It was good to get the first goal, it’s been a long time coming,’’ Dube said. “When you’re a forward you get frustrated, but you’ve got to keep going and make sure when you get a chance you get a goal. As long as you work hard and coaches have confidence in you, it’s always good they trust you, to put you in different spots.

“Playing on the right side, I think I’m getting used to it. Coach told me what to do, make sure to get in good spots.’’

“We let them break out, simple as that,’’ Keller said. “We gave them opportunities. We didn’t clear balls when we should have, we left guys wide open when we shouldn’t have, a couple of those goals were offside — but it was 100 percent our fault for letting them score the goals we let them score.

“We didn’t stay with runners. They had two chances in the first half from free kicks that went all the way to the far post where guys were open. In the end, we got punished. The way we collapsed was extremely uncharacteristic of us in the last 10 games and, hopefully, that’s something we’ve learned from and it doesn’t happen again.’’