Champions League LIVE SCORES: Action on NOW as Arsenal take on Athletic Club before Tottenham host Villarreal

CHAMPIONS LEAGUE football is BACK - and Arsenal are taking on Athletic Bilbao in Spain, with the action on NOW!

Last year's semi-finalists make the trip over to Spain to take on Athletic Club in the very stadium their rivals Spurs won the Europa League.

Tottenham will be making their return to the competition against former Gooners Thomas Partey and Nicolas Pepe and Villarreal from 8pm.

There are also four other thrilling matches for fans to sink their teeth into, including Real Madrid vs Marseille and Juventus against Dortmund.

Kick-off times: 5:45pm BST / 8pm BST

FREE live stream: Amazon Prime Video

TV channel: TNT Sports

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Follow ALL the action with our live blog below...

Athletic Bilbao 0-1 Arsenal

72. Supersub Martinelli makes it 1-0 to the Arsenal!

Just 36 seconds after coming on for Eze, the Brazilian makes an instant impact.

Trossard threads a brilliant through ball, and Martinelli bursts past his marker, leaving himself one-on-one with the keeper before calmly slotting it home with precision.

Goal Arsenal! - Gabriel Martinelli

Athletic Bilbao 0-0 Arsenal

65. Substitution for the Gunners who decide to shift their attacking approach, replacing Gyokeres with Trossard.

It’s been a difficult second half for the big striker, who hasn’t managed to fashion a single clear chance in this period.

Athletic Bilbao 0-0 Arsenal

61. Sub from Bilbao who bring Unai Gomez on for Navarro on the left wing.

Even with Madueke finding joy down the right wing, Arsenal haven’t quite been able to carve out a truly clear-cut chance to finish.

Athletic Bilbao 0-0 Arsenal

58. Arsenal controlling alot of the ball here.

Bilbao getting deeper and deeper as this match goes on.

All the best chances are coming down this right wing.

Eze is not really getting much action.

He's getting a much better feel for the game when he's finding central areas.

From Tom Barclay at Tottenham

THOMAS FRANK has made two changes for a Champions League game 30 years in the making for him.

The Dane tonight finally gets a crack at managing a game in the elite club competition three decades on from when he began his coaching career.

He brings back Richarlison and Rodrigo Bentancur, after starting them on the bench in the 3-0 win at West Ham following their international exertions.

Former Arsenal man Thomas Partey is on the bench for Villarreal.

The midfielder, 32, is due at Southwark Crown Court tomorrow morning to stand trial after being charged with five counts of rape and one count of sexual assault.

Athletic Bilbao 0-0 Arsenal

56. Another shot by Madueke.

The attempt gets through but is partially blocked and its an easy claim by the keeper.

Madueke, yet again, is the man creating all the chances for the away side.

How Spurs look

Arsenal are not the only side from London in Champions League action tonight!

Their rivals Spurs will take on Villarreal - and this is how they look...

Athletic Bilbao 0-0 Arsenal

53. Madueke hits the post!

Again down that wing, Madueke drives past his man and tries a cheeky outside-the-boot flick near post.

It almost catches the keeper out, who was expecting the cross, but the ball hits the post and bounces out of danger.

Athletic Bilbao 0-0 Arsenal

52. The Gunners get caught in position, and Athletic Club play on the counter quickly.

They go down the left wing and try and play it into the box, Arsenal manage to maintain them and win the ball back.

Great defending by Gabriel and Mosqerua.

Athletic Bilbao 0-0 Arsenal

50. Timber fouls Williams after a clash of heads; both players are okay and get up quickly.

Bilbao play the set piece short and don't make anything of it.

Athletic Bilbao 0-0 Arsenal

48. Chance!

Nice play on the left side by Eze, he's brought down and wins his side a free kick in a good position here.

Ball is floated in and Gyokeres finds himself completely free, but his header is well wide.

Should be doing much better there.

Athletic Bilbao 0-0 Arsenal

46. And we're off for the second half.

No Changes for either side as Bilbao gets us going again.

A competitive contest so far

A tight opening 45 minutes here in the Champions League group stage, with both sides left ruing missed opportunities.

Arsenal weathered Bilbao’s early pressure well, settling into the game after clearing an initial storm of attacks.

The home fans have created a cracking atmosphere inside San Mames, roaring their team on with every tackle and half-chance.

It's set up for an exciting second half in Bilbao.

Halftime - Athletic Bilbao 0-0 Arsenal

45+3. Final ball in from Bilbao as they win a corner, Sancet's header at the near post is over the bar.

The referee blows his whistle for halftime.

Athletic Bilbao 0-0 Arsenal

45. Fourth official announces a minimum of three minutes of additional time.

Madueke again down the right wing, has space in front of him.

Paredes does well to maintain him and manages to win a goal kick for his side.

Athletic Bilbao 0-0 Arsenal

43. Chance!

Bilbao counters down the left wing, and the ball is played through into the box.

Berenguer takes the shot from a tight angle, and it rolls just past the post.

Very close there from the Spanish side.

Athletic Bilbao 0-0 Arsenal

41. Arsenal is trying to corner Bilbao in their own half.

The London club managed to win the ball back, and Madueke has a chance to shoot just outside the box.

His weak-foot attempt is blocked.

Athletic Bilbao 0-0 Arsenal

37. Rice has got to be careful here, he's already on a yellow card and he's been involved in a lot of challenges here.

Arsenal are having success down the right side, it's Madueke again who's constantly causing danger for the Gunners.

Athletic Bilbao 0-0 Arsenal

35. Bilbao tries to take adavntage of the man down, but a poor touch on the left wing and it goes out of play.

Gyokeres returns to the field.

The Gunners have done well to weather the early storm from the Spanish side and have gained a lot more control over the past 10 minutes.

Athletic Bilbao 0-0 Arsenal

32. Play begins again with Gyokeres patched up with a black tape wrapped around his head, looks like he's okay to continue.

Arsenal is having to play with 10 men momentarily.

Athletic Bilbao 0-0 Arsenal

29. Freekick for Arsenal in a deep area on the right hand side.

It’s Rice who swings the ball into the box, and Gabriel rises to meet it, but it glances off the top of his head.

In the process, he collides with Gyokeres, and the Swedish striker goes down immediately.

Play is paused as Gyökeres receives treatment, there’s blood showing at the back of his head after the clash.

Athletic Bilbao 0-0 Arsenal

27. Great ball in from Arsenal!

Jurian Timber with a great ball in for Gyokeres, whose diving header just goes past the post.

The best chance of the night so far.

Bilbao manages to get rid of the danger and set Williams off on the counter.

But Raya is there immediately to clear.

Athletic Bilbao 0-0 Arsenal

25. Again, Gyokeres rolls his man down the left side, with plenty of running room, he tries to find Madueke, but can't quite get to him.

Bilbao clears and Arsenal regain possession.

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