Postpublished at 45+2 mins
Arsenal 0-0 Sporting Lisbon
This one is just petering out to a goalless half-time.
Bruno Fernandes shoots from 30 yards and hits his team-mate, who was offside.
Arsenal join Chelsea in reaching Europa League last 32
Gunners' 0-0 draw with Sporting enough to progress
Welbeck suffers serious-looking ankle injury
Mathieu sent off for foul on Aubameyang
Chelsea beat Bate Borisov 1-0 earlier
Giroud scores first goal of season
Emlyn Begley
Arsenal 0-0 Sporting Lisbon
This one is just petering out to a goalless half-time.
Bruno Fernandes shoots from 30 yards and hits his team-mate, who was offside.
Arsenal 0-0 Sporting Lisbon
Four minutes added on, entirely for Danny Welbeck's injury.
Arsenal 0-0 Sporting Lisbon
Henrikh Mkhitaryan crosses the free-kick. He crosses it over everybody and out of play.
Arsenal 0-0 Sporting Lisbon
Arsenal have a free-kick late in the half. Marcos Acuna fouls Henrikh Mkhitaryan, it's a definite foul, but Nani doesn't feel that way.
Arsenal 0-0 Sporting Lisbon
Nani does brilliantly to keep a long ball in play down the left, he finds Miguel Luis in the centre. Luis' first touch takes him past Matteo Guendouzi but the young midfielder recovers to win it back.
We'll let you know if we hear anymore about Danny Welbeck's injury.
#bbcfootball or text 81111 (UK only)
Marc Tyler: That looked nasty, feel for Danny Welbeck, was in good form. With his contract up at the end of the season I hope that wasn't the last we see of him in an Arsenal shirt.
Matthew Mallett: Gutted for Danny has been playing well when came on, always a model professional for the team. Will be sorely missed as a big goal threat from bench.
Arsenal 0-0 Sporting Lisbon
Sporting defender Bruno Gaspar brings down Alex Iwobi - booked.
Arsenal 0-0 Sporting Lisbon
A cross comes into the box, bounces up and Rob Holding controls it on his chest/top of his arm. The away fans whistle for a penalty which doesn't come.
Arsenal 0-0 Sporting Lisbon
Arsenal right-back Stephan Lichtsteiner has a shot from almost 25 yards but he drags it well wide.
Arsenal 0-0 Sporting Lisbon
Arsenal's third corner as Emile Smith Rowe's cross is blocked.
Arsenal 0-0 Sporting Lisbon
Arsenal have a corner now, which they play short into the box and it's out for a goal-kick.
#bbcfootball or text 81111 (UK only)
DJMannie: Danny Welbeck out for the season? That will be a big shame, the injury looked so horrible from the look of players surrounding him.
Abdul: I feel sorry for Welbeck, a talented player who always gets injured on his peak.
Stewart Wallace: Hope Danny is alright it looks like he's in a lot of pain.
Arsenal 0-0 Sporting Lisbon
Arsenal are going through as things stand.
Qarabag are beating Vorskla Poltava 1-0 - which means a draw would take the Gunners into the last 32. Former Everton youngster Araz Abdullayev scored the only goal so far from the spot.
Arsenal 0-0 Sporting Lisbon
Pierre-Emerick Aubameyang has scored four goals in three substitute appearances for Arsenal this season.
Arsenal 0-0 Sporting Lisbon
Carl Jenkinson, playing at left-back for Arsenal, sprints forward to get onto Matteo Guendouzi's pass but his cross is above everybody in the centre.
Danny Welbeck had been named in today's England squad.
Arsenal 0-0 Sporting Lisbon
Danny Welbeck, with his head in his hands, comes off on a stretcher to a standing ovation. Top scorer Pierre-Emerick Aubameyang is on.
Arsenal 0-0 Sporting Lisbon
Matteo Guendouzi has his head in his hands, this isn't looking good.
I should say Danny Welbeck is moving, he's not been knocked out.
Arsenal 0-0 Sporting Lisbon
Danny Welbeck is getting some oxygen now - with Nani and two Arsenal players standing over him - there's about seven medical staff dealing with him.