Lorik Cana has demanded an improvement from Sunderland Football Club.

Just when a 1-0 win over Liverpool looked to have provided the Black Cats with a platform to launch a bid for the top-six, a 2-1 defeat at Birmingham City has brought them back down to earth.

“It is very disappointing for us,” said Cana. “When we have won at home sometimes, we can't keep our level of play - and we must turn that around in future games.

"Everybody knows the potential and quality of our team. But it's a hard league, and you have to be 100 per cent concentrated all the time and start well in games.

"We must learn from that and change our mentality to keep our level over two or three games. We have a lot of work to do."

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