A Pierre-Emerick Aubameyang brace and just a second Arsenal goal for Ainsley Maitland-Niles secured a 3-0 victory which sent Emery's side through 4-3 on aggregate.

They join Chelsea in Friday's quarter-final draw, with Manchester City, Liverpool, Tottenham and Manchester United all in the last eight of the Champions League.

While success in the Europa League is seen by many as, first and foremost, a route back into the premier European club competition, Emery knows it offers much more than that.

"The Champions League is very important but the Europa League grew up a lot and now is giving every team the possibility to play in the Champions League," he said.

"In the domestic league, like here, we have six teams playing to be in the top four. Two teams are going out and the Europa League is giving us a big opportunity also to take one way to go to the Champions League.

"And also, it's one title. I said to the players today, I am excited about this competition. It's not just because you can get to the Champions League through this competition.

"It's also because it's one title and I think we can feel the possibility to win one title, doing this way with a difficult moment like today and playing also against big teams."

Rennes had made the most of facing 10 men for 50 minutes of the first leg following the dismissal of Sokratis Papastathopoulos – turning a 1-0 deficit into a 3-1 win.

While Sokratis was forced to sit out the second leg, Arsenal were able to call on Alexandre Lacazette after his three-match ban for a red card in the previous round was reduced to two games on appeal and, having already served both of those games, took his place in the side.

Rennes boss Julien Stephan questioned that decision – as well as another possible sending off for Lacazette in north London and Aubameyang being offside for the crucial second Arsenal goal.

"On the offside, it was very clearly an injustice, it was an error," he said.

"That goal changed a lot of things. Regarding the Lacazette decision, the commission decided that his elbow against BATE was only worth a two-game ban.

"There was a tackle by Lacazette in the first half which was borderline, for which he got a yellow.

"Then he made a challenge on (Ramy) Bensebaini which was also borderline, but the decision didn't go our way.

"There were quite a few things that went against us over the past couple of days. It's a learning curve for a club of our level, we don't have the power of Arsenal."

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