By Chris Harris at Emirates Stadium
WHAT HAPPENED
We still have work to do to reach the knockout stage of the Europa League after slipping to defeat against Frankfurt.
Pierre-Emerick Aubameyang scored his 10th goal of the season to give us the lead, meeting Gabriel Martinelli's low cross with a first-time shot that pinballed off the goalkeeper's trailing foot and bounced off the crossbar, onto the goal line and up into the roof of the net.
It was an unusual end to a flowing move that was started by Bukayo Saka, and it was no more than we deserved after making most of the running against the German side.