Inter Milan defender Javier Zanetti was surprised after his side slumped to a 3-0 defeat at Udinese on Sunday.
The fourth-placed Inter conceded three times in the final 30 minutes with veteran forward Antonio Di Natale bagging a double.
Colombian Luis Muriel also netted and Zanetti was perplexed after the match, claiming that his side had played well for the majority of the match.
"I don't know how that finished 3-0. We played well up until their first goal, but that's football," Zanetti told Inter Channel.
"You miss at one end, and you're punished at the other. You must never lose focus. However, we did play well for an hour.
"We're gutted but we need to accept the result and show more belief than ever. We must bounce straight back."
Inter host Pescara on Sunday in their next Serie A fixture.