Italy and Roma midfielder Daniele De Rossi has admitted that he is likely to be ruled out of the Azzurri's Euro 2012 semi-final clash against Germany.

The 28-year-old picked up a knock during Italy's quarter-final victory over England on Sunday and had to leave the pitch on the 80th minute.

"I hope to recover in time for the semi-final," said De Rossi. "The sciatic nerve is causing me pain and right now I am not optimistic."

Meanwhile, Portugal and Spain are preparing to go head to head for the first semi-final of the tournament tomorrow.