Ozil's assist was his eighth of the season in the Premier League and came just a few days after he set up both goals in Arsenal's 2-0 win over AC Milan in the first leg of their Europa League last-16 tie at the San Siro.
This had all the feeling of a last game of the season with nothing at stake.
Arsenal beat Watford 3-0 at the Emirates Stadium to end their losing run in the Premier League.
Arsenal picked up a vital win in their pursuit of a top four finish with a dominant win over Watford.
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"We talked after the recent poor results and we agreed that Arsenal deserve a better place in the league table", explained Elneny.
Arsenal's Shkodran Mustafi (centre) celebrates scoring during the Premier League match at the Emirates Stadium, London.
Pierre-Emerick Aubameyang fluffed two good chances in the first half and "playmaker" Henrik Mkhitaryan once again looked clumsy.
"I worry because I want our fans to be behind the team and happy", Wenger admitted, "but after what happened in that week [I understand]". The German worldwide headed Arsenal in front within 10 minutes and looked strong in one on one duels until he came off injured with a groin problem in the second half. "I can't believe today we didn't score a goal", he said.
"I always say when you go through a hard period, the last thing you change is your work, your attitude and your precision in the every day work that you do".
Petr Cech shows a little bit how quickly things change in football.