Arsenal boss Mikel Arteta admitted his side needs to improve the way they play from the back following Bernd Leno's error against Rapid Vienna.
Leno and his teammates were at fault as Vienna took the lead at the start of the second half and Arteta has warned the keeper to pick 'the right moments' to do it. The Arsenal keeper gifted possession to the hosts that allowed Taxiarchis Fountas to see the back of the net.
The north London came from behind to register a 2-1 victory thanks to David Luiz's header and Pierre-Emerick Aubameyang's tap in. Arteta has previously defended his philosophy of playing out from the back but following Leno's mistake, the Spaniard admitted the goalkeeper and his teammates need to improve their decision making.
"We need to understand when we can do that and when we should kick the ball to the stand, which is a big part of what we are trying to do," he said after the match.
"But to recognize that from the outside is much easier than from inside. He tried to do that, he has the courage to do it. We have been very successful at doing it as well with the number of goals that we have scored even in important games."
"So we need to find the right balance, but I will keep encouraging them to do it in the right moments."