An almost full-strength Juventus team was held by bottom of the table Treviso, but Zlatan Ibrahimovic could be in trouble. The Swede aimed some terse words at the bench after he was substituted and missed some great scoring opportunities.
The Bianconeri have been struggling of late and were humbled by Arsenal in the Champions League midweek. Patrick Vieira, Mauro Camoranesi and Jonathan Zebina will be suspended for the second leg, but Fabio Capello did not take the opportunity to rotate the squad against bottom of the table Treviso. The Stadio Tenni outfit had Antonio Filippini banned.
The reshuffled Juve defence was under pressure early on with Marco Borriello taking advantage of a Robert Kovac error, but Fabio Cannavaro was able to clear.
Moments later, David Trezeguet's backheel was charged down by a defender from six yards.
Patrick Vieira was brought down by William Viali and Adrian Mutu's resulting free kick skimmed the near post. Cannavaro's header was also closed by defenders.
On 16 minutes, Zlatan Ibrahimovic and Trezeguet combined, but the Frenchman nodded on to the side-netting from close range.
Juve began to pile on the chances, but couldn't break through. Ibrahimovic's volley into the ground looped over Adriano Zancope' and came off the base of the upright.
Zancope' flew to palm away another Mutu free kick and Giorgio Chiellini's scuffed effort skimmed the woodwork.
Mutu wreaked havoc down the left flank, but his low cross for Trezeguet's attempted tap-in was somehow kept out by a crowd of panicked defenders.
Ibrahimovic had another volley into the ground bounce inches past the upright.
Vieira gave the ball away just outside the area and Walter Baseggio drilled over the bar for Treviso.
Cannavaro was booked and will be suspended for next week's grudge match with Fiorentina.
Treviso went closer than anyone on the stroke of half-time, as a fierce Borriello free kick took a deflection off Gianluca Zambrotta and thumped the near post with Gigi Buffon beaten.
After the restart, Chiellini accidentally clattered into Zancope, but the goalkeeper was able to continue despite a visible swelling around his eye.
Mutu controlled the ball with his left foot and shot with his right, but Zancope stuck out a leg to block the angled drive.
There is a new disciplinary problem for Juventus, as Ibrahimovic was bickering with Coach Capello during the second half and was substituted soon after. When he left the field grinning, the Swede aimed a few choice words at team manager Alessio Secchi.
Mauro Camoranesi's attempted cross for Trezeguet was closed down by the Treviso defence.
Vascak ran totally alone towards Buffon, but was halted for an incorrect offside decision. It could well have been Treviso's best opportunity of the game.
Emerson escaped without a card after the referee did not witness an elbow on Borriello, while play was waved on after Mutu fell under slight pressure from Christian Maggio.
Treviso had a good chance to win it in stoppages, as substitute Acquafresca sprung the offside trap and saw his shot charged down by last man Zambrotta.
After six minutes of stoppages, the referee blew the whistle on a shock result for Serie A first-timers Treviso and Juve's second consecutive League draw.