Lazio coach Delio Rossi branded their defeat to Siena as "shameful".

"We played badly in both the first half and the second. We have to take responsibility," confessed Rossi.

"It was terrible and we apologise to everybody. Now there is a very important game, above all for our fans, and we chose the worst possible way to prepare for it.

"In the derby you will see another attitude. We apologise for this shameful performance and I take total responsibility as the one responsible for this squad."