Arsenal boss Arsene Wenger admits they suffered a "bad day" in defeat at Tottenham.
Wenger was left to reflect on a 2-1 defeat as his side failed to produce another battling away display like when winning at Manchester City last month.
"We scored early, but I think going forward, we didn't produce enough," he said.
"When we went forward, we always looked dangerous to score but were we too focused to defend our goal? I think so.
"I believe that we made too many technical mistakes compared to our level, because of Tottenham in the middle of the park.
"They put us under pressure and we lost some balls we are not used to losing.
"They were cheap goals (to concede). Tottenham didn't create so much, but I think we didn't produce enough.
"Overall, we defended with solidarity but the biggest regret is that we didn't have a good day. We can do much better - that is for sure and that is the positives of the day."