Inter Milan coach Stefano Pioli concedes they've lost their focus in recent games.
Inter are winless over the last four games.
“We just have to think about putting the best team out, getting back to winning ways and finishing the season with positive results," Pioli said.
“We've been running for six months, there's not a long way to go now and I'm convinced that we can do it.
“Two situations have penalised us lately: managing the ball, because we've given possession away cheaply, and dead balls. We need to work on that.
“I've never thought too far forward or about the past. We've played every game to the maximum, it's clear that during the season there could be physical peaks and troughs.
“Beyond tactical factors, in recent games we've lacked concentration for 95 minutes and these are the mistakes you pay for.
“The derby was a particular game, it's hard to find things to criticise other than concentration and defending dead balls.
“We've analysed the mistakes which we weren't making in the past and we need to improve our performances."