Arsenal striker Pierre-Emerick Aubameyang says the club have learnt form last season's mistakes in the Europa League after his hat-trick against Valencia sealed their progress to the final of the competition on Thursday.
A 4-2 win at the Mestalla gave Arsenal a convincing 7-3 aggregate victory over Valencia to take the London side to their first European final since 2006. They will face Chelsea in an all-English affair in Baku on May 29.