Roma fear Daniele De Rossi faces a spell on the sidelines after picking up an injury on international duty.
De Rossi sustained a thigh injury during Friday's 2-2 draw against Bulgaria and was forced to limp off.
The midfielder will miss Tuesday's World Cup qualifier against Malta and is set to undergo further scans to determine the full extent of the injury.
De Rossi joins Dodo and Federico Balzaretti on the injury list at the Stadio Olimpico and the club's club's medical specialist Michele Gemignani admits they are worried about De Rossi's fitness.
"We are a little worried about De Rossi," Gemignani told the club's official website.
"A clearer evaluation will be made tomorrow, at the moment this is the injury that concerns us the most."