Roma won for the third time in four games yesterday to climb to ninth in the Serie A standings but coach Claudio Ranieri is not happy with how his team is playing.

After I Giallorossi's 2-1 triumph at Atalanta, Ranieri said: "We still have a lot of work to do. We clinched three important points but we still have room for improvement because I am not happy.

"We have to continue to work very hard because there are certain mechanisms that the team has yet to register. You don't need a crystal ball to know what those are, we always give away goals."

Roma have the third most porous defence in the competition, with 22 goals given away in 14 matches. Only Genoa (24) and Siena (24) have leaked more goals.

Roma host city rivals Lazio on Sunday.