However, he insists he was to blame for the 2-1 loss.
Mazzarri said, “I want to apologise to the fans, as they were exceptional despite this being our worst performance for a very long time.
“We got almost everything wrong tonight. The internationals arrived late, but playing on Monday we even had an extra day compared to most others, so maybe I just got things wrong in training.
“We had too many players who were sluggish and lost, they looked like the bad brothers of the players who beat Atalanta. I saw at least four who just weren't themselves, so that must be my fault, as I was unable to motivate or focus them.
“Aside from possession, which at 2 miles per hour is futile anyway, we got nothing right. We didn't even put in decent crosses other than from corners.
“We had to concentrate on what we've always done well and we didn't. If you look at their first goal, it's inexplicable. You cannot concede a goal like that.
“Last season, we were constantly pinning opponents back and then at times incidents didn't go our way, including VAR interpretations. Tonight, Lecce looked capable of scoring a third or fourth goal."
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