The shortstop had four hits, including a game-winning RBI single in a rain-soaked bottom of the 10th inning and the Phillies beat the Cincinnati Reds 8-7 on Thursday night.
Chase Utley hit a pair of two-run homers for the Phillies, who pulled within three games of NL East-leading New York. The Mets come to Philadelphia for a four-game series starting with Friday's day-night doubleheader.
"It's a big win for us," Rollins said. "A lot of things tend to carry over from series to series. Hopefully, we can carry this momentum against the Mets."
Pinch hitter Rod Barajas led off the 10th with a walk against Victor Santos (1-3). One out later, Abraham Nunez laced a single to left field. Rollins worked the count full before lacing a line drive to the right-center field gap, easily scoring pinch-runner Jayson Werth.
"That's what I'm supposed to do in that situation," Rollins said. "Timing is everything. I got my opportunity tonight, it might be someone else's opportunity tomorrow."
Rollins also connected when the game's future could have been in doubt. Rain had fallen through the final three innings and intensified in the 10th as puddles were beginning to form on the infield dirt.
"They would have to do something (if the game moved to the 11th)," Phillies manager Charlie Manuel said. "Whether they would have put the tarp on or fix the field up, it was getting pretty bad out there."
Clay Condrey (3-0) escaped a two-on, two-out jam in the 10th to pick up the victory.
Gonzalez gave Cincinnati a short-lived 7-6 lead in the eighth, homering off reliever Ryan Madson for his 13th of the season.
The Phillies rallied in their half of the eighth off Marcus McBeth. Rollins delivered the big hit, roping a two-out triple to right field to score Nunez with the tying run. Rollins finished a home run short of the cycle.
Dobbs was struck on the left side of the head when Moeller was throwing the ball back to starter Matt Belisle. The ball caromed all the way to the far end of the Reds dugout, but the unusual play caught baserunners Ryan Howard and Aaron Rowand by surprise and neither moved up.
The ball appeared to hit Dobbs just over the left ear, which wasn't protected by an earflap since he is strictly a left-handed hitter.
Dobbs showed little effects of being hit at first. Two pitches later, he roped a one-hopper off the right-center field fence to plate Howard and Rowand and give the Phillies a 6-5 lead.
Dobbs, who bent over and held his head while on base, was replaced in the top half of the sixth by Michael Bourn.
Bourn lost a fly ball in the lights in the seventh inning, resulting in a double for Scott Hatteberg and moving Norris Hopper to third. Brandon Phillips then lifted a sacrifice fly to center field, scoring Hopper and tying the game at 6-6.
Encarnacion cut the deficit to 2-1 in the second inning with his fifth homer.
Dunn, the subject of numerous trade rumors, has homered in three straight games and leads the Reds with 23 homers, second in the NL behind Milwaukee's Prince Fielder (27).
Cincinnati took a 5-4 lead in the fourth inning on Hatteberg's RBI single, which scored Josh Hamilton on a bang-bang play at home plate.
Philadelphia took a 2-0 lead in the first inning when Utley connected on a 3-0 fastball for his first homer of the game.
Belisle appeared to be cautious with Utley again in the third inning, but the All-Star second baseman hit another 3-0 fastball over the right-field fence for his 15th home run to tie the game at 4.
"The first time he swung 3-0 I was a little surprised that he swung. I figured he'd wait. That was my wrong doing," Belisle said. "The second time I thought he might swing. I wanted to challenge him. I didn't want to back down."
While Belisle might have been surprised at Utley swinging 3-0, Reds manager Jerry Narron wasn't.
"Not one bit," he said. "There's no better hitter in baseball (than Utley). Anybody who thinks he wasn't going to swing is nuts."
Belisle worked five innings, surrendering six runs and eight hits. He walked one and struck out six.
Eaton yielded five runs on six hits over six innings. He walked three and fanned two.
- It was Utley's 13th career multihomer game and first of the season.
- Howard made a nifty over-the-shoulder diving catch in the third inning.
- Dunn has homered in three straight games three times this season.