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The Arsenal manager spoke to UEFA.com following the victory against Slavia Praha.
As Lazio meet Marseille again in the Europa League, recall this sensational strike by Adam Marušić in their 3-1 group stage win in France in 2018.
Watch what happened when these sides met in the Europa League round of 32, as Lazio completed a 4-2 aggregate success in Rome.
After Lyon and Sparta Praha were drawn to face each other, recall the French side's two goals in their 2-1 group stage win against the same opponents in 2012.
See how Manchester United claimed Europa League glory in Stockholm.
Watch the goals that gave Dinamo Zagreb a 2-0 win against their 2021 quarter-final opponents in the 2010/11 Group Stage.
See how Sevilla made it into another Europa League final after completing a 5-3 aggregate success in this 2016 encounter.
See what happened in the first leg of this epic all-Spanish UEFA Europa League semi-final from 2014.
Alexandre Lacazette, Edin Džeko and Moussa Sow feature in a list chosen by an expert panel.
Lyon's French international gave his reaction after his side's dramatic Europa League win in 2017.
We wind the clock back to the 2009/10 season and a ten-goal thriller over two legs in the round of 16.
We look back at some classic encounters from down the years.
See what happened in the first leg of what turned into a classic Europa League round of 16 tie in 2010.
"If you are a really lucky guy, then maybe you get ten of these in your life."
See how supporters of both clubs looked ahead to the Europa League meeting in 2016 between the two clubs Jürgen Klopp has enjoyed so much success with.
Look back at some of the most memorable moments from the opening night of the 2019/20 UEFA Europa League season.
Watch the best of the action from Europa League group stage, matchday one.
Alexis Sánchez and Ismaïla Sarr feature in our collection of stunning strikes from the opening night in the Europa League over the past few seasons.
Look back on a classic goal from the UEFA Europa League round of 32 tie between Beşiktaş and Braga.
See one of two Anthony Stokes strikes in a 3-1 win for Celtic.
Denilson scored this stunning long-range effort in a 2-0 win for the Gunners in the UEFA Champions League group stage.
See the Belgian star in action during Chelsea's glorious Europa League season.
Feyenoord, Wolves, Eintracht Frankfurt and PSV were among the teams that featured in the main path section of the Europa League third qualifying round draw.
Celtic, København and Rosenborg were among the teams that featured in the champions path section of the Europa League third qualifying round draw.
See how the 2019/20 UEFA Europa League first qualifying round draw panned out in Nyon
Watch the best strikes of the season, featuring Nani, Pedro and Ismaïla Sarr.