By Ewan Murray Tottenham Hotspur return to the Europa League on Thursday night when they host Dutch side AZ Alkmaar in north London. The Lilywhites bounced back from a disastrous defeat to Brighton & Hove Albion before the October international break by beating London rivals West Ham United 4-1 on Saturday. Son Heung-min returned and sparkled to lift Spurs to seventh in the Premier League table. Ange Postecoglou’s side will be eager to maintain their perfect Europa League record midweek after victories over Qarabag and Ferencvaros in their opening two European encounters. Spurs are one of only…