Valencia 1-0 Celtic
Valencia secured a narrow 1-0 win over Celtic thanks to Rodriguez Vicente's unstoppable shot 12 minutes from time in this third round first leg tie.
Valencia dominated the game and created numerous chances, but until Vicente's strike Robert Douglas had proved unbeatable.
The Celtic keeper made a number of important saves throughout the game.
Most impressive was his effort in the 69 minute when he tipped Curro Torres' header onto the post.
But after Neil Lennon had given away the free-kick for handball, Amedeo Carboni passed to Vicente, who blasted a powerful shot past Douglas.
Already decimated by a number of injuries, Celtic were further hit just before the kick-off by the loss of Chris Sutton because of a family illness.
From the start Celtic had to concentrate on their defensive duties.
And as early as the fourth minute Johan Mjallby made an important block to deny Roberto Ayala's goalbound strike.
Celtic had Douglas to thank for keeping them on level terms in the 10th minute.
Pablo Aimar spun in the box and his strike was pushed away by Douglas.
Celtic nearly grabbed a surprise lead in the 21st minute.
Moravcik swung in a dangerous corner which John Hartson nearly reached.
Four minutes later and the Welshman had a glorious chance to break the deadlock.
He controlled Moravcik's pass on his chest and although he let the ball run away from him, he still got off a shot which Santiago Canizares saved at the second attempt.
A minute later, Stilian Petrov squandered an even better opportunity.
He beat the off-side trap to run onto Henrik Larsson's pass. but with just the goalkeeper to beat, Petrov knocked the ball too far forward.
Then Valencia's Miguel Angulo picked out Carew at the near post, but the Norwegian failed to hit the target.
Rab Douglas then pulled off great saves from Aimar and Juan Sanchez in the dying seconds of the opening period.
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Valencia: Canizares, Pellegrino, Ayala, Albelda, Carboni, Vicente, Aimar, Torres, Angulo, Sanchez, Carew. Subs: Palop, Djukic, Adrian Ilie, Marchena, Rufete, Mista, Salva.
Celtic: Douglas, Mjallby, Balde, Crainey, McNamara, Lambert, Lennon, Moravcik, Petrov, Larsson, Hartson. Subs: Gould, Sylla, Petta, Tebily, Healy, Maloney, Guppy.