Mauro Camoranesi scored twice in as many minutes to give the Bianconeri a 2-0 lead at half-time.

Valdes reduced the deficit early in the second half, but a Felipe Melo scorcher restored the two-goal advantage four minutes later.

Fabio Ceravolo set up a grandstand finish on 71 minutes, but late goals from Diego and David Trezeguet, with his record-equalling 167th for the club, left the scoreline looking slightly harsh for a valiant Atalanta.

Despite the five goals, and three other efforts ruled out, Juventus coach Ciro Ferrara praised his team's defensive performance.

"This is the spirit I want Juve to play with," he said. "We are playing a different system at the moment with playmakers but we also have to work hard. Those at the front are the first that have to defend so we don't get left one-on-one at the back. "We've only lost one in five now and we are getting better at playing without the ball - a sign of a great side. We're working on confidence and obviously this result will help us a lot."

Hoping to banish memories of their last outing in Serie A - a 3-2 loss to Napoli - Juventus began in positive fashion on a difficult, rain-drenched surface.

Camoranesi, scorer of the Champions League winner in midweek against Maccabi Haifa, set his sights on 10 minutes with a scuffed shot which was turned around the post by a diving Andrea Consigli.

After Trezeguet had a header ruled out for offside, Atalanta almost snatched the lead on 33 minutes as Cristiano Doni turned sharply 12 yards out but could only flash his shot inches wide. The chance seemed to spark Juventus into action.

Fabio Grosso turned and crossed for Camoranesi to bury a header at the near post to give Juve the lead on 36 minutes.

The two combined a minute later with Grosso's center, this time from the left, cleared straight to Camoranesi and the Argentina-born player picked the same spot perfectly from the edge of the area to double the lead.