After Juve surrendered their unbeaten record at Brescia last week, they were determined to regain the winning thread.
Pavel Nedved put the Old Lady ahead on 34 minutes after good work by Alessandro Del Piero but Lazio were level within 60 seconds.
In-form Bernardo Corradi teed up Stefano Fiore and the Lazio playmaker made no mistake.
It was Fiore who pinched the winner for the visitors just after the interval and the result ensured Lazio stay in second.
Milan remain top of Serie A after a hard-fought 2-1 victory at bottom club Como.
The Scudetto pacesetters were pushed all the way by the top flight minnows but Andrei Shevchenko proved the difference between the two sides.
Massimo Ambrosini put the visitors ahead on 20 minutes but Como were level just 120 seconds later courtesy of Fabio Pecchia.
Ukrainian striker Shevchenko has been in fine form since his return from injury and bagged the winner three minutes before the interval.
Internazionale stay on the heels of their city rivals with a 1-0 home success over Atalanta.
Mohammed Kallon had a dramatic impact as a substitute as the African poached the only goal just two minutes after entering the fray.
Roma provided themselves with a much-needed fillip as they comfortably beat Reggina 3-0 at Stadio Olimpico.
A third minute goal from Walter Samuel gave his side the perfect platform and Francesco Totti struck midway through the first half before Vincenzo Montella rubbed further salt into the wounds on 70 minutes.
Empoli moved into the top half of the table as Tommaso Rocchi's late goal earned them a home win over Modena.
Udinese stuttered to a disappointing 1-1 draw at home to struggling Torino despite taking the lead.
Vincenzo Iaquinta put Udinese ahead on 56 minutes but a quick-fire equaliser from Cristiano Lucarelli snatched a precious point for Torino.
Brescia hauled themselves further away from the relegation zone with a convincing 3-1 triumph over Perugia.
A first half double from Igli Tare put Brescia in control before Fabrizio Miccoli reduced the arrears midway through the second period.
Veteran forward Roberto Baggio soothed the nerves late on by stroking home a penalty with two minutes remaining.
Click below for an individual match summary:
Brescia 3-1 Perugia
Como 1-2 Milan
Empoli 1-0 Modena
Inter 1-0 Atalanta
Juventus 1-2 Lazio
Roma 3-0 Reggina
Udinese 1-1 Torino
