Lazio midfielder Stefano Mauri will be sidelined for three weeks in order to recover from a herniated disc.
A recurring back problem has limited former Italy international Mauri to just four Serie A starts this season.
A Lazio statement read: "We have decided for Mauri to undergo a non-surgical procedure based on radio frequencies to deal with a herniated disc.
"This will be carried out over the new few days. After that Mauri will have to rest for a week before he can begin the recovery process.
Serie A is senza Padrone. Without a boss. The lead just keeps changing hands.
Already this season three different teams have spent time alone at the top. Inter Milan did after making their best start in almost half a century. Fiorentina then beat them at San Siro to move into first place for the first time since Valentine's Day 1999. They were then lost to Roma and were overtaken by them. Back out in front and on their own 700 days after they last were, defeat to Inter then meant they slipped behind...
Roma's Mohamed Salah has been ruled out for four to six weeks after suffering an ankle ligament injury in Sunday's Eternal City derby against Lazio, with coach Rudi Garcia furious that Senad Lulic was not sent off for the challenge.
Salah left the Stadio Olimpico on crutches following Roma's 2-0 victory, with Garcia suggesting that it would be a "miracle" if the player's ankle was not broken.
Garcia feels Lulic should have been punished with a straight red card for the lunge on Salah, as the Giallorissi boss...