Lazio boss Edy Reja has no doubt AS Roma are in a false position.
For today's derby, Roma are struggling and will be without suspended captain Francesco Totti, but secured back-to-back wins over Lecce and Basel.
"Claudio Ranieri is right when he says they have potential that has not yet been expressed. Roma are dangerous, especially from set plays, but considering Lazio's current form it is impossible to make predictions."