Daniel Wass makes a good headed interception as Oli Burke looks to get on the end of a cross. The midfielder looks pretty comfortable at the back.

Cristiano Piccini pulls up with a groin issue and on comes French striker Kevin Gameiro. Danish midfielder Daniel Wass will deputise at right-back.

Is that something Celtic could exploit or am I clutching at straws?

Cristiano Piccini ghosts away from Emilio Izaguirre and weaves his way into the Celtic penalty area. The Italian full-back drills in a cross and Scott Brown has to knock it behind for a corner.

Brown brushes the face of Geoffrey Kondogbia with an outstretched arm as players jostle for position and the giant Valencia midfielder goes down like he's been shot.

The corner is retaken and Celtic repel the danger.

Odsonne Edouard gets to the byeline and his low cutback causes some consternation inside the six yard box as it ricochets off two Valencia defenders, but the visitors get it clear before Timothy Weah can intervene.

Edouard has definitely given Celtic more presence up top but goalkeeper Neto still hasn't been tested since he fumbled an early effort from Callum McGregor.

Alasdair Lamont
BBC Sport Scotland at Celtic Park

The Celtic supporters, so used to winning and often winning comfortably at home, are growing increasingly frustrated by the pace at which their team is playing and the lack of a cutting edge. The fact is, they don’t often come up against opposition of this calibre, who won’t be easily broken down and are at least as fast and athletic as the Celtic players.

Image source, SNS

Fancy giving our Player Rater a go? Got a funny feeling your ratings may have changed a bit since the first time I mentioned it.

Player Rater can be found HERE

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

Image source, SNS

Denis Cheryshev, with one goal and an assist, has done his work for Valencia. Record signing Goncalo Guedes is on. The Portuguese winger is rapid.

I've been calling him Daniel all night. D'oh! Apologies Comrade Cheryshev...

Now the second replacement has a glimpse of goal from the edge of the penalty area but his first-time effort zooms high over the top.

Still, Celtic are looking livelier now.

Odsonne Edouard looks in the mood as he bustles his way forward and bounces off grizzled Argentina veteran Ezequiel Garay on the edge of the box. Loud cries from the home fans but Edouard wasn't really appealing for anything.

Timothy Weah and Odsonne Edouard are on for Celtic, taking over from Ryan Christie and Scott Sinclair.

Can the substitutes inspire a comeback?

It's just not happening for Celtic as Callum McGregor slices a long-range effort high and wide.

We have some activity on the home bench...

Celtic really are all over the place as Cristiano Piccini tests Scott Bain with a sharp shot from a tight angle. The goalkeeper, who had not conceded a goal in seven games this year, beats it away

Alasdair Lamont
BBC Sport Scotland at Celtic Park

The Spanish journalists round about me are getting very excited by events here. The same can’t be said for the Celtic fans, who are calling in vain again for offside. Most, though, are bemoaning their team’s inability to keep the ball, many in quite colourful language.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

Image source, SNS

A glimmer of good news for Celtic as Valencia captain Daniel Parejo fails to reappear for the second half. His position has been taken by former Arsenal enforcer Francis Coquelin.

No changes for Celtic. How will big Pat Bonner be feeling about that?

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

Celtic are giving the ball away in horrible positions and have allowed Valencia to come into this game. The first 10 minutes Celtic controlled the game. Valencia's organisation has been excellent - 4-4-2, but how many times have you come up against a European team that plays 4-4-2 when you have the advantage in midfield? Celtic have to change Scott Brown right now and put Callum McGregor back into that position.

Image source, SNS

Goalkeeper Scott Bain has his arm raised in vain, appealing for an offside, as Denis Cheryshev strokes the ball into an empty net.

The home side have dominated possession, which comes as a surprise to me, but Valencia have the all-important goal.

Image source, BBC Sport