Oooh, danger for Arsenal as Martin Odegaard gives the ball away to Bruma on the edge of the Gunners' box but, fortunately for Odegaard, Bruma's attempt on goal is a poor one and the visitors get away with it.

Spurs will likely have to be patient and precise here. Dinamo have a string of men across their own box to repel what the home side are throwing their way.

Willian is brought down 25 yards from goal by Kenny Lala. David Luiz and Willian are over the free kick and it is the former who takes it but hits it straight at the goalkeeper.

Kieran Tierney's ball in is just over Bukayo Saka's head before Thomas Partey launches an effort well over.

The Gunners still look the most likely to score but need to be less wasteful with these chances they are creating.

A question for the Spurs fans out there? If qualifying for the Champions League is this season's aim, which competition should take priority as the best way to achieve that: the Premier League or Europa League?

Or do you trust the lads to handle the work load and go flat out in both?

Image source, Getty Images

Finally the home side show a bit of attacking intent but Mohamed Camara's ball into the box is too close to Bernd Leno. The Arsenal keeper tries to bowl the ball out quickly but instead Olympiakos regain possession before Camara sees a low drive blocked.

Image source, Getty Images

Dele Alli is in behind the Dinamo defence to collect an Eric Dier lofted pass on the chest, but the process of bringing the ball down allows the visitors to get back, rob him of possession and clear.

Arsenal could have been 2-0 up having had two great chances inside the first 10 minutes. It is still all Arsenal with Olympiakos yet to embark on foray into the Gunners' half.

Harry Kane looks to a whip a cross towards his besty Son, but a deflection takes the ball just over the bar.

The resulting corner is met by Dinamo keeper Dominik Livakovic, who punches out with two hands.

Tottenham not quite on it yet. A few passes going astray, players failing to read each others' intentions.

Another big chance for Arsenal!

This time Pierre-Emerick Aubameyang gets his head onto a Hector Bellerin cross and his header deflects off Sokratis' shoulder but Jose Sa reacts superbly to push the ball onto the bar.

Arsenal remain on the front foot. There was a late change for Olympiakos with Ousseynou Ba unable to start and the defence hasn't quite settled yet.

First look at Spurs going forward. Son Heung-min chips a cross in towards Dele Ali. The ball clears the midfielder in the box and skips just past the far post.

Dinamo mean business here. They have started on the front foot, looking to cause havoc in the Spurs half. Jose Mourinho already on his feet and looking a bit concerned.

Arsenal have a great chance with just three minutes on the clock but Martin Odegaard drags his shot wide from the middle of the box.

Odegaard puts his hand on his face, he knows that should at least have been on target.

Almost an early disaster for Spurs. Serge Aurier piles forward leaving acres of space for Mislav Orsic to run into after Davinson Sanchez relinquishes possession. The low shot that follows is tame, though, and easily saved by Hugo Lloris.

Poor start by the home side.

All set for more Europa League drama?

Tottenham and Arsenal are getting under way in their respective games now.

Neil Lennon
Former Celtic manager on BBC Radio 5 Live

The execution, timing of the run and the pass and for [Amad] Diallo to have the awareness to know where Gianluigi Donnarumma is and flick it over his head is a top-class goal.

Donnarumma is a big boy so to have the feel to guide it over him was a brilliant goal. I would not get too excited yet but for an impact at 18-year-old it is a fantastic start.

It was so instinctive. He looked about 12 when he came on, he is so small. He has a turn of pace, and lovely close control. The run he makes was penetrating getting in between two really good defenders. Let's hope he has a similar career to Ronaldo but let's see.

Almost time for the 20:00 GMT kick offs to get under way. Here's how the early games finished up:

Ajax 3-0 Young Boys

Dynamo Kyiv 0-2 Villarreal

Man Utd 1-1 AC Milan

Slavia Prague 1-1 Rangers

Neil Lennon
Former Celtic manager on BBC Radio 5 Live

Manchester United were inviting pressure. They had set their stall out. Dan James had a chance to make it 2-0 and that would have probably put the tie beyond Milan.

Milan were good tonight and they deserved something from it but as a manager or a coach that kills you. It is virtually the last kick of the game and psychologically it just changes the balance of the tie.

As the second half wore on Milan got stronger and United were just holding on.