Roma captain Francesco Totti faces a month out with a thigh injury.
Totti went off just six minutes after stepping on to the field in yesterday's 5-1 win over Carpi.
There were fears he could be out for two months, but Sky Sport Italia say medical tests were more reassuring.
It is a lesion to the right thigh muscle, the same spot where Totti still has a scar from a similar injury two years ago.