PHILADELPHIA - Domonic Brown hit a game-ending RBI single to give Philadelphia a 5-4 victory over the Colorado Rockies on Thursday night.

The Phillies scored two runs in the eighth and two more in the ninth for their second come-from-behind win in as many days. They have won four of five to improve to 4-3 under Ryne Sandberg, who became the manager when Charlie Manuel was fired last Friday.

"We're just out there having lots of fun, feeding off the energy we have in the clubhouse," Brown said. "We're trying to make a statement going into next year."

Colorado carried a 4-3 lead into the ninth, but Rafael Betancourt (2-5) blew a save opportunity for the second straight game and the third time in 19 chances.

"That was a tough loss," Rockies manager Walt Weiss said. "The Phillies kept fighting."

Jimmy Rollins started the winning rally with a two-out double. He then stole third and scored on Michael Young's slow roller to third that went for a hit. Young had the game-winning hit off Betancourt in Philadelphia's 4-3 win on Wednesday night.

Betancourt departed after Young's at-bat with an elbow injury, heading to the dugout after a visit from Weiss and a trainer. The right-hander had lunged for Young's grounder that went just out of his reach. After the game the team said he sprained his right elbow.

Jeff Francis came in and walked Chase Utley before Brown's grounder to right scored Young. Brown was mobbed by the Phillies, who took three of four games from the Rockies for just their second series win since the All-Star break.

Wilin Rosario homered for Colorado, which has dropped five of six. The Rockies have won nine of 39 games against Philadelphia since the start of the 2008 season.

Darin Ruf homered and Carlos Ruiz had three hits for the Phillies.

Colorado rookie Chad Bettis allowed one run and six hits over 51/3 innings in his fifth career start. He was in line for his first win before Philadelphia's late rally.

"The first one is never easy and you can never count the other team out," Bettis said. "I felt real good tonight. Everything was working pretty well. I had better location than my last start. I had the same stuff but my command and location were better."