Olympiacos Piraeus v Arsenal - as it happened
Thanks for joining me tonight. See you next time for more action.
FT: Olympiakos 0-1 Arsenal. Arsenal have managed to win this one right at the death and it could prove to be a crucial win and away goal. I fancy them to do the business in London next week.
Arsenal sub: Maitland-Niles on for Sokratis.
Ba is booked for fouling Lacazette.
5 minutes added time.
The corner comes in and Sokratis hits the bar. The rebound is then headed wide.
Great chance for Arsenal to kill the game on the counter-attack. The ball ends up with Aubameyang in the box, he shoots but Sá matches and makes a good save to put it wide.
I can't believe it, Arsenal have scored. Aubameyang plays it to Saka, he crosses in along the ground and Lacazette knocks it in. 1-0 Arsenal.
And another chance. This time Fortounis fires wide.
Valbuena has a deflected cross out for a corner.
Camara has a very ambitious effort that goes well wide.
Arsenal sub: Pépé on for Willock.
Olympiacos sub: Masouras off for Lovera.
Valbuena hits the free-kick from far our that Leno gets down and saves.
Great chance for Olympiacos. Valbuena swings in the free-kick, Ba headers but it's more or less straight at Leno and he dives and saves.
Mustafi is booked for a foul on El-Arabi
Incredibly with 20 minutes left we still haven't had a shot on target in this half...
Olympiakos sub: Bouchalakis off for Fortounis.
Xhaka crosses, Lacazette headers and it appears to hit the defender's arm. No penalty given as the header goes wide.
There's been no shots on target in this half.
Arsenal sub: Ceballos on for Martinelli.
Luiz has an ambitious effort from 25 yards out that goes wide.
In all honesty, this game has all the signs of a 0-0...
Camara's shot is deflected and is straight at Leno.
And Luiz hits the free-kick from about 30 yards and it goes wide.
Bouchalakis is booked for a foul. Arsenal will probably shoot from the free-kick.
From what we've seen so far, I wouldn't say that Arsenal and United have been two convincing in tonight's matches. You'd fancy them both to go through but if they face teams like Inter and Sevilla in the next round they may struggle.
And we're back.
HT: Olympiacos 0-0 Arsenal. Both teams go into the break level with both sides having a few chances. A draw probably a fair result at the moment.
2 minutes added time.
Lacazette has a deflected half volley from just inside the box out for a corner.
Not too many chances lately.
Guilherme fires his long-range effort over.
Close from Arsenal. Xhaka's free-kick hits Martinelli and almost catches Sá out, but he manages to save.
Semedo is booked for a foul on Lacazette.
The ball is crossed in and is almost turned into his own net by Luiz. Luckily for the Brazilian Leno was there to save.
Willock has a weak effort from inside the box that he puts wide.
A sitter from Lacazette. Martinelli cuts the ball back and Lacazette fires wide from about 7 yards out.
El Arabi is booked for a foul on Guendouzi.
Arsenal trying to get into gear here.
Tsimikas puts in a cross but it goes over the bar.
Olympiacos haven't lost a home game since October...
Intimidating atmosphere here. I fancy the hosts to get a goal if they stay on top.
Another great chance for the hosts, The ball is crossed in but Masouras heads over from yards out.
Bright start from the hosts. The ball is crossed over for Valbuena, he hits it on the volley and Leno gets down and parries, and the ball just escapes the Olympiacos players waiting to tap it in.
And we're off.
Last match between these sides ended in a 3- win for Arsenal in Greece in 2015. In total, there have been 9 meetings between the 2, with Arsenal winning 4 and Olympiacos winning 4, with 1 draw.
Arsenal XI: Leno; Mustafi, Sokratis, Luiz, Saka; Guendouzi, Xhaka; Martinelli, Willock, Aubameyang; Lacazette
Olympiacos XI: Sa; Elabdellaoui, Semedo, Ba, Tsimikas; Bouchalakis, Camara, Guilherme, Masouras, El Arabi, Valbuena.
Hello and welcome to Greece for this Europa League last 32 1st leg match. Team news to come.