Ajax will play away on Thursday February 18 at 21:00 CET. One week later, the return leg will be played at the Johan Cruijff ArenA, at 18:55 CET. Erik Ten Hag's team played Lille last year in the UEFA Champions League; Ajax won both ties (3-0 and 0-2).
Ajax also played in the Europa League last season, where they were bested by Spanish side Getafe over two legs. In 2017 Ajax reached to the final of the Europa League.