Slavia Prague: Kolar, Bah, Holes, Zima, Boril, Hromada, Oscar, Stanciu, Provod, Olayinka, Sima.
Subs: Kovar, Stejskal, Tecl, Kuchta, Sevcik, Traore, Masopust, Lingr, Visinsky.
Arsenal XI: Leno, Bellerin, Holding, Gabriel, Cedric, Partey, Xhaka, Saka, Smith Rowe, Willian, Lacazette.
Subs: Ryan, Hein, Lopez, Elneny, Ceballos, Azeez, Nelson, Pepe, Nketiah, Martinelli, Aubameyang.
Hello and welcome to our coverage of today's Europa League clash between Arsenal and Slavia Prague, live from the Emirates.
KICK OFF: We're underway at the Emirates!
A positive start from Slavia - Xhaka has already made a strong midfield tackle.
Almost! Lazacette spins past Zima after collecting a decent pass from Holding, before playing Saka into the area. However, Holes comes across to make a really good tackle, getting plenty of the ball. Saka just needed another touch before striking.
First corner of the game for Slavia as Bellerin sees the ball behind from Stanciu's feet. Not much comes from the set-piece though, with Dorley's shot from the top of the area smacking into another team-mate in the area.
Bellerin is seen away down the right and flashes a cross into the area, but Zima is there to send the ball away.
A good run from Smith Rowe down the left, sending a cross in. Zima is there to head, but only sends the ball looping into the area.
Lacazette it waiting, but it's goalkeeper Kolar who plucks the ball from the sky.
Action down the left now as Cedric lifts a cross into the area, but Kolar has it well covered.
A good clearance from Bah at the back post as Saka drives into the area from the right before lofting a cross over to the left. But the defender is there.
What a superb delivery from Holding! He flashes a great cross into the area, but Lacazette cannot turn it home. Saka is then delivering from the right wing too, but Willian's attempt to shoot is intercepted.
Saka! Holding again with a really lovely pass through for Saka, who seems to have all the space in the world to run in to. However, he fires his effort wide of the far post. Incredible miss!
First shot on target for either side as Olayinka fires goalwards from the top of the area after the ball lands kindly at his feet. However, he fires it straight at Leno with a pretty weak effort.
Another free kick for Arsenal, this time just outside the area as Provod clips Saka, sending him over. Chance for the hosts. But it's into the wall.
Chance! The closest Arsenal have come so far! The ball is recycled again, Cedric firing in the cross this time, meeting the head of Holding. But his effort is tipped over the crossbar by the goalkeeper.
Good block from Boril! Saka drives into the penalty area, but the Slavia captain throws his body in front of the ball to see it behind for a corner.
KICK OFF: We're back underway at the Emirates. Slavia have made a change at the break.
HALF TIME: No added time at the end of the first half. Arsenal came closest to opening the scoring but it's level at the break.
Booking: Zima fouls Saka inches outside the area and is cautioned for it. Chance from the free-kick here for the Gunners.
POST! Willian curls it in, but it smacks off the side of the post and out for a goal kick.
Gabriel looks to be in a bit of bother as he gets inadvertently with Sima. It looks to be a bit of contact on the ankle and the medics are on.
Gabriel is OK to carry on here, which is good news for Arsenal fans.
Big save from Leno! It's a really good move from Slavia as Provod drives goalwards before playing the ball into Boril on his left. However, the Slavia captain sees his effort from the top of the area saved by the legs of Leno.
POST! Incredible miss from Lacazette. Lacazette steals the ball really well off Olayinka in midfield before driving goalwards with no one anywhere near.
He only has the goalkeeper to beat, but his curled effort to the right pings off the top of the crossbar and goes wide.
Chance! Arsenal are camped around the Slavia area as Saka stands up a cross towards the back post. Lacazette is there to meet it, but can only flash his effort high into the stands from close range.
Substitution: Double change for the visitors. Dorley off for Lingr. Sima off for Kuchta.
Substitution: Here comes Martinelli, replacing Willian.
Substitution: Triple change for Arsenal! Saka, Lacazette, and Partey come off. Pepe, Aubameyang, and Elneny are on for the Gunners.
Pepe delivers a corner and everyone is up - but Aubameyang heads it the wrong way as Slavia hack the ball clear.
Martinelli chips the ball into the area on a creative angle, but Smith Rowe cannot get there before Kolar catches it.
Substitution: Another Slavia change now - Stanciu makes way for Masopust.
GOOOOAL! PEPE! Great bit of play from Aubameyang too in fairness, as Arsenal clear down the field. It initially lands to Zima, but he doesn't control it well and Aubameyang is there to slot the ball through for Pepe.
It's then a driving run into the area for the Frenchman, before slotting home wonderfully past Kolar. No less than Arsenal deserve!
And yet another change for the visitors. Traore is on for Olayinka.
Substitution: A final Arsenal change as Smith Rowe makes way for Ceballos.
Four minutes added on as Bah heads onto the top of the net.
GOAL! SLAVIA EQUALISE! In the final minute of added time. What drama. Holes with a header at the far post to break Arsenal hearts.
FULL TIME: What a late result for Slavia Prague. It's all set up beautifully for next week's second leg in Prague.