Full-Time: VALENCIA 1-2 CHELSEA.

Chelsea have hung on to a crucial three points - for their Champions League campaign and perhaps even their whole season.

Villa's cross almost finds its way through to Arizmendi but Cech races off his line to gather the ball.

Alex comes on for Mikel.

John Obi Mikel is booked for taking too long to leave the pitch.

Valencia bring on Javier Arizmendi for Joaquin.

Valencia are pressing but there's no real conviction in their attacks.

After a flurry of activity in the Chelsea area, Marchena whistles a shot narrowly wide.

Another change by Grant as Malouda makes way for Salomon Kalou.

Chelsea bring on Sidwell for a hobbling Essien.

Carvalho hobbles back into the action after treatment.

If anything Chelsea look more likely to go further ahead as the match enters its final stages.

The first yellow card of the evening as Marchena is booked for hauling Ricardo Carvalho down.

Play swings to the other end and Hildebrand gathers Drogba's free-kick at the second attempt.

A half-cleared corner comes to Silva who slices his shot over the bar.

Valencia bring on Ruben Baraja for David Albelda.

The goal wasn't really out of the blue - Valencia have completely lost their way since the interval.

VALENCIA 1-2 CHELSEA. A superb pass by Jole Cole finds DROGBA who sweeps past Albiol and slots his shot past Hildebrand's despairing dive.

The first change as Morientes makes way for the giant Nikola Zigic.

Carlos Marchena's long-range effort fails to trouble Cech.

Moretti is forced to concede a corner as Chelsea step up the pace, but Hildebrand punches it clear.

Valencia can't string any passes together. Their fluent football of the first half-hour is but a distant memory.

The scrappy tone of the match continues, although Chelsea will not be too unhappy with that - a draw will be a moral victory for them after recent shenanigans.

The game has lost its way as both sides struggle to create any clear-cut openings.

Grant thinks about bringing Steve Sidwell on for Makelele but the veteran Frenchman is eventually able to continue.

Play is halted as Makelele slumps to the floor.

Unlucky Valencia as Morientes plays in Villa who turns the ball home only to be ruled offside.

Valencia win a corner that is whipped in to the back post where Emiliano Moretti heads narrowly wide, better by the home team though.

The Mestalla crowd tries to lift the home team who are definitely going through a rocky period.

Valencia have lost their way, their incisive passing of the first 30 minutes has been replaced by some nervous football.

Joe Cole tries to thread a ball through to Drogba, but it's cut out. Chelsea are looking much better now.

Chelsea start the second period brightly, although Terry heads wide from a deep corner.

Valencia get the second half underway - no changes by either coach at the break.

Half-Time: VALENCIA 1-1 CHELSEA.

Drogba seems to be running freely again.

Joaquin requires treatment after appearing to take a blow to the face.

Drogba stretches for a long ball and immediately clutches the back of his leg - possibly a pulled hamstring for the big striker.

Chelsea have tightened up defensively as a lively first period comes to a close.

Drogba and Raul Albiol go up for a header and play stops briefly after a clash of heads.

Ivan Helguera's solid tackle stops Joe Cole in his tracks.

More trickery by Silva who has been one of the star performers in the first half.

Chelsea will be happy to go in level at the break as they've been distinctly second-best so far.

It's one-way traffic at the moment as Valencia continue to probe down the left.

Ashley Cole does well to beat Morientes in the air as Valencia continue to press.

Villa tries his luck from 25 yards out, but drags his effort wide.

Valencia come again. Silva, Villa and Joaquin are cutting the Chelsea defence to ribbons.

If only Joaquin could finish. He finds himself in the clear again but Claude Makelele gets back to tackle the former Real Betis winger just before he can pull the trigger.

Valencia may well rue Joaquin's miss literally seconds before Chelsea's equaliser.

Chelsea survive an almighty scramble in their penalty area.

VALENCIA 1-1 CHELSEA. Drogba sends Florent Malouda down the left, and when the Frenchman pulls the ball back, JOE COLE is on hand to turn the ball home from close range.

It should be 2-0 as Morientes combines well with Joaquin, but the winger is unable to drill his shot past Cech.

Some of Valencia's passing is very slick, whereas Chelsea seem content to lump the ball forward in the general direction of Drogba.

Drogba is ruled to be onside and the Ivory Coast man's strike is only just wide. Better by Chelsea.

A long ball forward finds Drogba's head but no Chelsea player can latch on to his flick-on.

Terry hoofs the ball away to repel another smart Valencia attack.

Morientes makes the most of what appeared to be a humdrum Essien challenge.

Fair play to Villa though, he kept his run going despite losing the ball and his pace was electric.

It was an unfortunate deflection, but did Chelsea ever concede goals like that when Mourinho was in charge?

VALENCIA 1-0 CHELSEA. It's a disaster for Chelsea as VILLA loses the ball only for it to be deflected back into his path by Essien and the striker runs on to fire home past Petr Cech.

Grant's side are starting to settle after a distinctly rocky opening five minutes.

Chelsea appear to have set their stall out to take a point from this fixture.

Better play by Chelsea but Essien's cross is gathered by Hildebrand.

It's an early warning for Chelsea though, as Ashley Cole was caught out of position in that swift attack.

Joaquin goes on a jinking run before finding David Silva whose fierce shot is too high.

Chelsea, in all-blue, get the match underway.

Santiago Canizares starts on the bench for Valencia as Timo Hildebrand keeps his place in goal while Fernando Morientes and David Villa start in attack.

John Terry starts for Chelsea despite having surgery on a broken cheekbone. The club captain will wear a protective mask. However, Andriy Shevchenko starts on the bench while Michael Essien returns after recovering from a torn calf muscle.

In sharp contrast, Valencia have won five of their six La Liga games to date despite not playing particularly well and won 1-0 at Schalke in their opening Champions League match.

But with Mourinho now part of Stamford Bridge folklore, Avram Grant has the unenviable task of lifting a Chelsea side that were held to a 1-1 draw by group minnows Rosenborg two weeks ago.

The Blues won through to the semi-finals 3-2 on aggregate after Michael Essien's dramatic last-gasp goal secured a 2-1 win for Jose Mourinho's side in the Mestalla.

Misfiring Chelsea travel to Valencia to play in a repeat of last season's Champions League quarter-final clash between the two teams.