To complete a dreadful day for Arsenal, keeper Petr Cech injured his groin with Wenger later confirming he will miss Saturday’s clash with bitter rivals Spurs along with defender Laurent Koscielny.
The Arsenal chief said: “It was a very unlucky defeat as we created many chances.
“We have just lost three games and it is a difficult moment for the team. We don’t dream, we have to be realistic, come back to what we do well and do the basics.
“We have to take our fans on side. I believe we have first to come back to positive results before we talk about championships and what is at stake at the moment.
“We won’t talk about the title tonight, I am not in the mood. It is a big disappointment.”