CINCINNATI (Ticker) -- Adam Dunn 's three-run homer with two outs in the bottom of the 10th inning lifted the Cincinnati Reds to a dramatic 6-3 triumph over the Montreal Expos .

Dunn entered the game in a 4-for-40 slump in which all the hits had been home runs. In this one, he hit a solo homer in the fourth before giving Cincinnati its 13th win in 17 games.

Dunn went 3-for-4 and six of his last seven hits have been home runs. His game-winning hit also was his 17th homer, tying St. Louis first baseman Albert Pujols for the league lead.

"I've felt pretty good the last couple of days," Dunn said. "I knew it was gone as soon as I hit it. I didn't know how far and I didn't care,".

After Chad Cordero (1-1) retired D'Angelo Jimenez and Felipe Lopez , Sean Casey doubled to right field. After Expos manager Frank Robinson elected to walk Ken Griffey Jr., Dunn crushed Cordero's 1-1 pitch over the right field fence.

Dunn agreed with Robinson's decision and also admitted it provided him with extra motivation.

"Oh yeah. It definitely makes you focus," Dunn said. "Any manager would have done it. It gives you more outs at more bases and everything but it makes you focus."

Cordero, who had not allowed a home run in his previous 20 outings, also agreed with Robinson's move.

"Walking Griffey was the right thing to do," Cordero said. "I had to go after Dunn. I made a mistake and he made me pay for it. It was a fastball up and in and I didn't get it in enough."

"That's his best pitch," Robinson added. "He lives or dies with it. You don't throw your second or third best in that situation."

Dunn recorded his seventh career two-homer game and his blast made a winner of Todd Jones (4-1). After closer Danny Graves blew a save by allowing back-to-back solo home runs to Tony Batista and Nick Johnson in the ninth, Jones struck out two in the 10th.

Cincinnati starter Paul Wilson , who was trying to join Houston's Roger Clemens as the second eight-game winner in the National League, returned from a groin injury and allowed one run and one hit in six innings.

"Wilson did a helluva of a job," Reds manager Dave Miley said. "We got what we wanted out of him."

Jones rallied the offense in the dugout after fanning Cordero to end the top of the 10th. He also was insulted Cordero was not lifted for a pinch hitter.

"I can't believe they didn't pinch hit for Cordero," Jones said. "That's an insult to our hitters. Try to get to the fat man. You don't try to wade through (Sean) Casey, Griffey and Dunn."

Cincinnati broke on top with three runs in the fourth off Expos starter Tomo Ohka . Griffey hit his 496th career homer, Dunn followed with a home run to right and Wilson capped the frame with an RBI base hit.

Wilson gave up an RBI double to rookie Terrmel Sledge in the fifth and Miley turned the game over to John Riedling , who tossed two scoreless innings.

After Graves gave up Batista's fifth homer, he was one strike away from ending the game. But he blew his his first save in 10 chances and fifth in 31 opportunities when Johnson sent his 3-2 pitch into the right field seats.