VIDEO: Kei Kamara cuts Portland's lead in half after another 'keeper gaffe

Anything you can do, I can do ... worse?

That's the tune Portland Timbers goalkeeper Adam Kwarasey will be singing to himself after conceding to the Columbus Crew in the 18th minute of the MLS Cup final.

Kwarasey, like Crew 'keeper Steve Clark before him, managed to make a meal out of what looked like an easy, routine play by failing to clear an easy overhead ball. It bounced around in the box, drawing a number of gasps until, eventually, Kei Kamara struck to score.

It's Kamara's fourth goal of the playoffs, and his 26th overall in 37 games of the complete 2015 season. The goal also cut Portland's lead to 2-1, and gives Columbus hope for a comeback at MAPFRE Stadium, with plenty of soccer still to come.