Zlatan Ibrahimovic completed a strong comeback as Juventus get back to winning ways by deepening Lazio's gloom.
Mimmo Caso's job was on the line after Lazio's UEFA Cup exit, but the pressure was also on Fabio Capello's men with Milan closing up the gap. Pavel Nedved was ruled out due to a bout of flu, but Alessandro Del Piero returned from a muscular problem.
Juve took the initiative and were extremely unlucky not to score after nine minutes. Mauro Camoranesi's cross reached Zlatan Ibrahimovic at the back post and his header into the ground thumped the crossbar with Matteo Sereni beaten.
However, it was Lazio who took the lead with their first real effort soon after. Youngster Goran Pandev dribbled past three different Juventus defenders around the six-yard box before slamming in a precise angled drive. It was a spectacular solo effort from the Macedonian ex-Inter striker, though there was also good build-up play from Roberto Muzzi.
Massimo Oddo needed a goalline clearance to prevent Ibrahimovic drawing level, even if he was probably in an offside position, then Del Piero's volley was off target.
Ibrahimovic's glancing header on Ruben Olivera's cross skimmed the far post as Lazio were being squeezed into their own half. Del Piero couldn't believe he failed to score from a brilliant assist by Ibrahimovic, as he somehow ballooned over the bar with only Sereni to beat.
Juventus eventually got their equaliser just before the break, as a free kick was played down the right and Mauro Camoranesi's chipped cross was met by a powerful Ruben Olivera header.
There was bad news for the Uruguayan, as a few minutes later he limped off with a muscular problem to be replaced by Olivier Kapo.
Lazio had a strong start to the second half with a chance for Pandev, who couldn't make the most of Muzzi's cutback, then he fired over the bar from close range.
Juve fought back and Sereni had to fly across his own goal to prevent Fernando Couto's wayward header going in, while Ibrahimovic's header was just wide from a Kapo cross.
Sereni performed another fine reaction save, this time on Emerson's header from a Camoranesi free kick, but for the most part Juve were unable to really trouble the Lazio goalkeeper.
There was controversy on 70 minutes when Ibrahimovic felt he was dragged down in the area by Jose Talamonti, but the referee waved away penalty appeals.
Juve managed to take the lead for the first time with 15 minutes left on the clock. Kapo deserved much of the credit for skipping past two defenders on the right, but a lucky deflection turned his cross into the path of Ibrahimovic for a tap-in.
Lazio poured forward for a fiery final few minutes with Gianluigi Buffon rushing off his line to clear from substitute Simone Inzaghi, while Couto bravely blocked off an Ibrahimovic counter-attack.
A deflected Camoranesi strike skimmed the woodwork of an open goal and Lazio tried until the end, but Juventus get back to winning ways.
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Juventus: Buffon; Zebina, Thuram, Cannavaro, Zambrotta; Camoranesi, Emerson, Appiah, Olivera (Kapo 45); Del Piero (Zalayeta 70), Ibrahimovic
Lazio: Sereni; Oddo (Lopez 46), Talamonti, Siviglia, Couto; Cesar (Inzaghi 80), Filippini, Gianichedda, Dabo; Pandev, Muzzi (Rocchi 62)