CINCINNATI -- When Edwin Encarnacion came to bat in the bottom of the 10th against Milwaukee Brewers closer Eric Gagne, the few thousand rain-chilled fans left in the stands began to boo.

Encarnacion expected it.

The third baseman let Milwaukee pull ahead in the top of the inning with yet another error. Then he hit a solo homer, his second of the game, that sparked the Cincinnati Reds toward a 4-3 win Sunday.

"I knew my error could lose the game," said Encarnacion, who has six of Cincinnati's 11 errors this season.

Instead, Paul Bako followed with another solo shot off Gagne (1-1), who was pitching for the fourth day in a row. Ken Griffey Jr. eventually ended it with a run-scoring single off Salomon Torres.

Encarnacion helped the Brewers pull ahead 3-1 in the top of the 10th by booting a grounder as he hurried to try to start a double play. Jared Burton (1-1) let in a run with a wild pitch, and J.J. Hardy singled home another.

Milwaukee was only three outs from a series sweep.

Manager Ned Yost didn't have any qualms about bringing in Gagne to pitch for the fourth straight day. The closer had been throwing well lately, converting his last five chances, and assured Yost that he could get those last three outs.

"He felt good," Yost said. "I check with my relievers every day. It was pushing it a little bit, but he felt good, he felt loose."

The feeling didn't last.

"I felt very good," Gagne said. "I got behind in the count. That's the thing: You've got to get ahead. I didn't do that today. "

After Gagne gave up the back-to-back homers and walked Scott Hatteberg, Torres relieved and gave up an infield single by Brandon Phillips. Griffey singled over the head of right fielder Corey Hart to end the game and Encarnacion's misery.

Another cool, wet afternoon made it tough on the hitters. A steady rain fell throughout, and fans bundled themselves in jackets and hooded sweat shirts against the 56-degree chill.

The only thing that the teams managed through the first nine innings was one homer apiece -- Hardy in the fourth, Encarnacion in the sixth.

Milwaukee's Yovani Gallardo, activated off the disabled list before the game in a move that sent Joe Dillon to Class AAA Nashville, allowed only four hits through seven innings. The right-hander proved his surgically repaired left knee was fine by throwing 112 pitches.

Aaron Harang was sick in his start Tuesday, when the Cubs piled up five runs in six innings of a 9-5 victory at Wrigley Field. He was back in form Sunday, allowing four hits in eight innings while striking out eight.

His only glaring mistake came against Hardy, one of numerous Brewers' hitters who have yet to find their stroke. The shortstop was a first-time All-Star last season, when he hit 26 homers, but has struggled to keep his average above .200 in April.

On his first swing against Harang in the fourth, he sent a belt-high fastball toward the upper deck in left field for his first homer. Hardy also threw Adam Dunn out at the plate on a relay as he tried to score standing up from first base on Jeff Keppinger's double in the fourth.