The game was overshadowed by a traffic accident which claimed the lives of two supporters and injured 20 more travelling from Switzerland to watch the game at the Stadio Olimpico.

Juventus captain Alessandro Del Piero put the hosts ahead in the fifth minute before Amauri doubled the lead shortly after the re-start.

Ruud Van Nistelrooy reduced the deficit in the 66th minute but despite the Spaniards' desperate attempts, the Italians held on for a vital victory.

The win lifted Juve one point clear of Real Madrid, and eased the pressure on coach Claudio Ranieri, whose team had not won in five games in all competitions.

Manchester United contemptuously dismissed Celtic 3-0 in their all-British encounter at Old Trafford.

Two suspiciously offside-looking goals from Dimitar Berbatov - taking his Champions League tally to four - and a customary strike from Wayne Rooney, who now has nine in seven games for club and country, paid scant justice to United's total dominance.

Celtic did not even make a fight of it, allowing Sir Alex Ferguson to gain the personal satisfaction of avenging a defeat at Parkhead on the last meeting between the teams two years ago.

A stunning first 21 minutes paved the way for Arsenal to beat Fenerbahce 5-2 in their Champions League Group G match at the intimidating Sukru Saracoglu stadium in Istanbul.

Emmanuel Adebayor and Theo Walcott put the Gunners 2-0 up inside 11 minutes and although Mikael Silvestre's own goal reduced the deficit, Abou Diaby restored the Gunners' cushion.

Four minutes after half-time Alex Song volleyed in a fourth to extend the Gunners' lead at the top of the group.

The profligate Daniel Guiza pulled a goal back in the 77th minute but it was too late to affect the outcome and substitute Aaron Ramsey fired in off a post in the fourth minute of injury time.

It was the hosts' first defeat in Europe at home in 16 matches but in truth they were the architects of their own downfall.

Fiorentina were guilty of missing a hatful of chances as they slipped to a resounding 3-0 defeat against Bayern Munich.

Miroslav Klose got Bayern off to the perfect start as he fired them into the lead in the fourth minute and Bastian Schweinsteiger doubled the hosts' advantage in the 25th minute.

Fiorentina tried valiantly to get back into the match but it was not to be their night as chance after chance went begging before Ze Roberto added a stunning third right at the death.

La Viola are now five points behind Group F leaders Bayern without a victory under their belt.

Dynamo Kiev claimed their first Champions League win in almost four years against an off-key Porto side 1-0.

Oleksandr Aliev's wicked first-half free-kick was all that separated the sides at the Estadio do Dragao as Dynamo enjoyed their first three-point haul in the competition since defeating Roma 2-0 in November 2004.

The result also continues Dynamo's remarkable turnaround in European competition over the last 12 months.

After conceding a record-equalling 19 goals on their way to suffering six defeats in their 2007/08 campaign, the Ukrainians have conceded just one goal in three outings so far and are well in contention to make the last 16 for the first time in nine years.

Defeat for Porto is their second in a row following on from their 4-0 humbling at the hands of Group G leaders Arsenal last time out.

The victory moves Dynamo onto five points and into second place above Porto, who have three points from as many games.

In Spain, half-time substitute Joseba Llorente bagged a hat-trick as Villarreal survived a scare before turning on the style in its Champions League clash with AaB to win 6-3.

Llorente replaced the ineffective Guillermo Franco at the interval and scored twice inside three minutes to give the hosts what proved an unassailable 4-2 lead.

Villarreal had not conceded two goals in a game all season going into the clash, but did so inside the opening 45 minutes here.

Marek Saganowski gave the Danes a deserved lead and Thomas Enevoldsen brought them level after Giuseppe Rossi and Joan Capdevila had struck for the Yellow Submarine.

AaB were eventually overwhelmed after the break, despite a third goal from Andreas Johansson which made it 4-3, as further efforts from Robert Pires and Llorente sealed the win for Villarreal.

All five second-half goals came in a stunning 17-minute spell.

The win moves the Primera Liga side on to seven points from their opening three games in Group E, level with Manchester United, while AaB remain on one.

Karim Benzema and Fred grabbed braces as Lyon twice came from behind to emerge 5-3 victors in an eight-goal thriller against Steaua Bucharest and go clear in second place in Champions League Group F.

In a pulsating end-to-end clash in the Romanian capital, Steaua capitalised on some desperate defending to go 2-0 then 3-2 in front before the break.

Kader Keita and Benzema cancelled out goals in the opening 11 minutes by Arthuro and Dorin Goian, but Ovidiu Petre gave the hosts an interval advantage with a header on the stroke of half-time.

Fred equalised within minutes of coming off the bench and Benzema completed the comeback to put Lyon in front 19 minutes from time, his 13th Champions League goal.

Fred's second of the night, in injury time, finally killed Steaua off.

The Romanians are bottom and still without a win, but with Bayern Munich beating Fiorentina on matchday three, Lyon's victory puts it three points clear of the Italians in second.

Zenit St Petersburg finally got off the mark in the Champions League on Wednesday morning with a 1-1 draw against BATE Borisov but will nevertheless rue a number of missed opportunities to take all the points.

The visitors took the lead against the run of play in the 52nd minute with substitute Pavel Nekhaychik's first touch of the game but Zenit levelled matters 11 minutes from time through Fatih Tekke.

Zenit, last season's UEFA Cup winners, pressed hard for the winner but had to settle for the point which leaves them rock bottom of the group following defeats to Real Madrid and Juventus. BATE are one place and one point better off after their second draw of the group phase.