FULL-TIME: ARSENAL 1-2 OLYMPIACOS (2-2 on aggregate; Olympiacos win on away goals)
120' +1
Leno has to take responsibility for Arsenal there. He took a heavy touch that invited pressure from the visitors, before a rushed clearance conceded the corner that led to the goal.
119'
Y. El-Arabi has scored a goal for Olympiakos! Assist by G. Masouras.
EL-ARABI!!! GOAL FOR OLYMPIACOS! They have surely snatched victory! After Leno concedes a cheap corner, El-Arabi arrives late to turn home Masouras' deep cross to send the travelling support into ecstasy.
Masouras was the provider with a terrific cross.
117'
A. Papadopoulos enters the game and replaces Guilherme.
Final throw of the dice from the visitors as Guilherme makes way for Avraam Papadopoulos. He drops into defence, while Cisse pushes forward as an additional striker.
114'
M. Lovera enters the game and replaces K. Tsimikas.
Olympiacos turn straight to the bench as Maximiliano Lovera is thrown on in place of Tsimikas.
113'
P. Aubameyang has scored a goal for Arsenal!
AUBAMEYANG!!!!! WHAT A GOAL! ARSENAL LEAD! Ozil's cross is helped on by Martinelli and deflects high into the air, before Aubameyang unleashes a stunning scissor kick that flies past Sa and could well decide this tie.
111'
Olympiacos hanging on for dear life as Arsenal continue to apply the pressure in these closing stages. They just about manage to clear the ball to safety for now.
106'
Olympiacos get the ball rolling once more. Can either side find a winner?
105' +3
HALF-TIME: ARSENAL 0-1 OLYMPIACOS
105' +1
We are into the first of two additional minutes at the end of this first period in extra-time.
Minute
Description
105'
Gabriel Martinelli enters the game and replaces A. Lacazette.
Final change for Arsenal as Lacazette is replaced by Gabriel Martinelli.
103'
S. Papastathopoulos enters the game and replaces S. Mustafi.
Mustafi is unable to continue and makes way to be replaced by Sokratis Papastathopoulos.
102'
A huge concern for Arsenal as Mustafi stays down and appears to be struggling. The centre-half seemed to overstretch during a previous Olympiacos attack.
100'
Arsenal appeal for a penalty after Aubameyang's strike appears to strike the arm of Cisse, but the referee is not interested. Although, replays show that the ball came off the shoulder of the Olympiacos defender.
96'
It has been all-Arsenal so far in this first period of extra-time. They have enjoyed almost all the possession, but must look to press home their advantage.
91'
Arsenal get us back underway! We have another half an hour to play and will see a penalty shootout should the scoreline remain unchanged.
90' +3
END OF 90 MINUTES: ARSENAL 0-1 OLYMPIACOS
90' +1
A low corner is met by Ba, but he is unable to connect cleanly with his header and it goes wide of the far post.
90'
Corner to Olympiacos! We are into the final 15 seconds of regulation time at the Emirates. They couldn't, could they...?
88'
Arsenal continue to search for the late winner as Luiz climbs to meet Pepe's corner, but he is unable to connect with his header, which drifts wide.
86'
Bruno Gaspar enters the game and replaces M. Valbuena.
Meanwhile, Olympiacos make a very conservative change as Valbuena is sacrificed in favour of defender Bruno Gaspar.
84'
J. Willock enters the game and replaces Héctor Bellerín.
An attacking change from Arsenal as Bellerin makes way for Joe Willock, who continues his record of having played in every Europa League game this season.
Good tackle! Ozil looks to force the issue as he embarks on a jinking run into the box. However, a well-timed challenge from Tsimikas denies him the opportunity to get a shot away.
83'
Arsenal turning up the pressure. This time, Torreira has a go from just outside the area, but Sa holds on to his fierce attempt.
81'
Chance for Lacazette! A neat dummy from Ozil wrong-foots Cisse and allows the ball to run through for the Frenchman, whose 20-yard strike goes high and wide of the target.
80'
Arsenal look to restore the initiative in the tie as Xhaka tries his luck from distance. However, his ambitious effort is always rising.
77'
G. Masouras enters the game and replaces L. Ranđelović.
A change for Olympiacos sees Giorgos Masouras introduced in place of Randelovic.
72'
L. Torreira enters the game and replaces Dani Ceballos.
Arteta turns to the bench and makes his first change of the game with Ceballos making way for Lucas Torreira.
70'
This contest is finely poised as we enter the final 20 minutes at the Emirates. Nothing to separate the sides on aggregate and, as things stand, we are heading for extra-time.
68'
Nothing for now. Despite a couple of attempts, Olympiacos stand firm to prevent Arsenal from getting a clear sight on goal.
66'
Arsenal's pressure eventually leads to Saka forcing a corner down the left flank. What can the hosts make of this?
64'
Olympiacos' goal has certainly shocked Arsenal into life. The hosts suddenly have a lot more urgency and purpose about their play. They will certainly be wary not to concede another here.
59'
Arsenal looking to respond and Xhaka lines one up from distance. However, the effort goes well wide of the target.
58'
M. Camara gets yellow.
Camara is booked for a professional foul near the touchline to prevent a potential Arsenal counter.
55'
The goal that levels this tie comes from the man only in the side as a replacement for the suspended Semedo. Making only his second European appearance of the season, it was a terrific header from Cisse and it is game on at the Emirates!
53'
P. Cissé has scored a goal for Olympiakos! Assist by M. Valbuena.
The noise in the visiting end raises a few decibels as Olympiacos are awarded a corner on the far side. What can they make of this?
CISSE!!! 1-0 OLYMPIACOS! And the tie is all square! The centre-half levels up the contest on aggregate as he ghosts in to head home from Valbuena's corner.
Valbuena provided the assist with a delicious corner that was begging to be attacked.
46'
Off we go again! Olympiacos get the ball rolling once more.
45' +1
HALF-TIME: ARSENAL 0-0 OLYMPIACOS
41'
At the other end, some space opens for El-Arabi to try his luck from distance. But the forward's drilled effort lacks power and is easily gathered by Leno.
35'
Arsenal have been sloppy in possession today; misplacing relatively simple passes on a regular basis. Arteta looks unimpressed on the touchline as he barks out instructions to his players.
33'
Making his first start in this season's Europa League, Ozil seeks out Lacazette with a clipped ball into the box. However, the Frenchman is not quite on the same wavelength and the ball runs through to Sa.
30'
Arsenal have a shout for a penalty after the ball appear to strike an Olympiacos arm in the area. However, the referee is not interested in pointing to the spot.
26'
Following a neat exchange of passes between Bellerin and Ozil, Pepe delivers a deep cross towards the far post. However, there is too much pace on the delivery and Sa lets it run behind for a goal kick.
24'
End-to-end stuff as a breaking Randelovic is dispossessed by Ceballos, who subsequently sets up an Arsenal counter. Xhaka charges forward before seeking out Ozil, who is just unable to get his attempted throughball under control.
22'
Pepe, Aubameyang and Lacazette are stood over the free-kick right on the edge of the visitors' box. It is the Ivorian who steps up, but is just unable to keep his delivery down.
20'
O. Ba gets yellow.
Ba is shown the first yellow card of the game for a foul on Pepe, who was threatening to burst clear on goal.
19'
Olympiacos threaten on the counter and Mustafi is forced to make a vital interception to cut out a potentially dangerous cross from the left flank.
12'
The visitors have some defending to do, but carry out their duties effectively - making solids blocks to deny efforts from Xhaka and Pepe.
8'
Olympiacos enjoying their first decent spell of possession and eventually earn a throw-in on the far side. That will encourage the visitors.
3'
A bright start for Arsenal sees them force the first corner of the game, which is dealt with by Olympiacos. Soon after, Ozil clips the ball into the box, but Sa gathers.
1'
Italy's Davide Massa is our referee today. He blows his whistle and Arsenal get us underway.
Arsenal hold a 1-0 advantage from the opening leg and will advance to the last 16 of the competition should they avoid defeat at the Emirates Stadium today.
Hello everyone and welcome to live text coverage of the Europa League, as Arsenal and Olympiacos go head to head in the second leg of their last-32 tie.
SUBS: Emiliano Martinez, Sokratis Papastathopoulos, Ainsley Maitland-Niles, Lucas Torreira, Joe Willock, Matteo Guendouzi, Gabriel Martinelli.
ARSENAL (4-2-3-1): Bernd Leno; Hector Bellerin, Shkodran Mustafi, David Luiz, Bukayo Saka; Dani Ceballos, Granit Xhaka; Pierre-Emerick Aubameyang (captain), Mesut Ozil, Nicolas Pepe; Alexandre Lacazette.
OLYMPIACOS (4-3-3): Jose Sa; Omar Elabdellaoui (captain), Ousseynou Ba, Pape Abou Cisse, Kostas Tsimikas; Guilherme, Mady Camara, Andreas Bouchalakis; Lazar Randelovic, Youssef El-Arabi, Mathieu Valbuena.
SUBS: Ilias Karargyris, Bruno Gaspar, Vasilis Torosidis, Avraam Papadopoulos, Maximiliano Lovera, Giorgos Masouras, Emiliano Bullari.
The teams are making their way out onto the field and kick-off is moments away.
While still only a goal behind, Olympiacos will be encouraged as they head into the second half. Arsenal have not been at their best so far today and the Greek side must stick with their opponents to stand the best chance of nicking a goal.
Arsenal's first-leg advantage was wiped out by Pape Abou Cisse's second-half header at the Emirates. Thereon, nothing could separate the sides and we are going to have an additional 30 minutes.
The Gunners have reached at least the semi-finals in their two previous appearances since the re-branding of this competition. Meanwhile, Olympiacos are looking to go one step better than last year and equal their best-ever performance.
There is still no separating the two teams. Arsenal have been the more dominant so far in extra-time, although Olympiacos will rue that missed Gaspar opportunity.
Olympiacos will find out the identity of their last-16 opponents in Friday's draw. Meanwhile, Arsenal are back in action on Monday, when they face Portsmouth in the FA Cup - their last remaining hope of collecting silverware this season.
That's all for today. Thank you for following our coverage. Until next time, goodbye!
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