Lazio midfielder Hernanes insists they deserved their derby win over AS Roma.

Lazio fought back from a goal down to beat arch-rivals Roma 2-1 in the derby with a penalty and the last-gasp Miroslav Klose winner.

"This was a deserved Lazio victory that we were missing," said Hernanes after the final whistle.

"We tried to achieve it in every possible way, then at the end Matuzalem's spectacular assist and Klose's cool head put the ball in the net.

"We really needed this win and this performance. Now we have to continue improving. It feels like a weight has been taken off our shoulders."