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Instead, thoughts were firmly with Danny Welbeck, who is facing another arduous road back to fitness after suffering a sickening ankle injury in the first half. It was one of those injuries you wish you never saw.
One that you cannot erase from memory no matter how hard you try. The final whistle goes and it is a disappointing result for the Gunners, given the amount of domination they had.
A point still seems enough to see Arsenal through unless Vorskla managed to turn around their one goal deficit against Qarabag. Smith-Rowe beats one defender but puts his cross too deep which pretty much sums up the Gunners' attacking play this evening.
Qarabag's lead against Vorskla means a point would still see Arsenal through to the next round tonight. It was a cynical tackle from the Frenchman but he knew he was beaten for pace and tried to make a last ditch effort to deny him.
Free-kick to Arsenal He picks out the Gabonese striker with a first-time ball. As he opens up his foot to place the ball towards the far corner, a Sporting defender gets his body in the way and clears. They haven't created too many clear opportunities this evening but continue to press for a goal nonetheless.
Trouble brewing for Brendan Rodgers with his team on the brink of elimination. Luis also receives a yellow card for a foul on Sokratis. Hamstring perhaps? He won't offer much in terms of movement or runs in behind but stick a cross up at the back post and Dost will more than likely get something on it.
Dangerous threat to Arsenal. They're enjoying plenty of possession but nothing is coming from their dominance. Acuna goes into the book for protesting the referee's decision to award the hosts a corner. It comes to nothing though and Arsenal remain frustrated.
BetisMilan 57 mins: Good run from Nani More resolute defending from Sporting sees them break up an attack and send Nani charging down the left. He slows and then speeds up, giving him enough space to cross towards Montero but Cech dives and gets there first. Smith-Rowe has runners in the box and a play overlapping but instead opts to cut inside and shoot but his effort is deflected away from danger.
Diaby is unmarked and he unleashes a fierce volley that looks set to be heading for the far post before it is blocked.
His effort whistles wide of the goal when he really should have scored. Not much to separate the two sides so far with Danny Welbeck's awful-looking injury the major talking point. Nani cuts it back to Luis on the edge but his first touch is woeful and ends the attack.
Mkhitaryan is hauled down on the right side and the Gunners have a set piece in a promising position now. Replays show it's a tight one and if the official isn't sure then he can't give it.
After a short run up he unleashes a tame effort that goes wide of the goal.
The Gunners are struggling to create anything of note at present. They're packed into the far corner and behind the goal. Their team haven't given them much to be excited about so far though. Aubameyang set to come on.
The attempt floats into the goalkeeper's arms and now the forward is down on the floor with an injury. The referee calls for the stretcher to come on. Hopefully it's not too serious.
Pressure now on him for the rest of the game though up against the agile winger.