PORTLAND, Ore. -- A five-point lead in overtime wasn't enough for the reeling Milwaukee Bucks.

Brandon Roy finished with 26 points, including the key go-ahead layup in overtime, and the Portland Trail Blazers beat the Bucks 117-113 Sunday.

Having lost three of their four games on a West Coast swing that ends Monday night in Sacramento, the Bucks have dropped seven of eight overall.

"It's really hard to swallow," Bucks coach Larry Krystkowiak told the Milwaukee Journal Sentinel after seeing Portland shoot 56 percent from the field. "It's hard for all of us involved. Losing is no fun. We've been in some close ballgames and haven't been able to get over the hump."

The Bucks went up 112-107 in the extra period after Andrew Bogut made a pair of free throws. But LaMarcus Aldridge, who scored 24 points, made a jumper before fouling out and Travis Outlaw added two more free throws to narrow it to 112-111.

Milwaukee's Michael Redd missed a 3-point attempt with 32.9 seconds to go.

Roy hit his layup to give the Blazers a 113-112 lead, their first of overtime. After Mo Williams missed a layup, Steve Blake was fouled by Charlie Villanueva and made both the foul shots to give Portland a 115-112 lead.

Redd missed a jumper in the final seconds and afterward the officials reviewed whether Blake's loose ball foul came before the buzzer.

After 1.2 seconds was put back on the clock, Charlie Bell purposely made just one of the resulting free throws, and Outlaw grabbed the rebound and was fouled on the other end, making both of his for the final margin.

Williams had a season-high 33 points, 14 of them in the third quarter.

"I just got it rolling for the first time in a while," he said. "It felt good to have it going like that."

Redd's layup put the Bucks ahead 101-97 with 3:06 left in regulation. He added two free throws to extend the margin.

Blake's 3-pointer narrowed it 103-101 with 1:15 left, but Bogut answered with a turnaround hook shot with less than a minute left.

After Roy made a pair of free throws to narrow it again, the Blazers capitalized on a Milwaukee turnover and Aldridge was fouled by Bogut.

Aldridge made both foul shots to tie it with 15.2 seconds left. Williams missed a 25-foot attempt with less than a second to go in regulation.