Fiorentina captain Manuel Pasqual and Roma right-back Douglas Maicon are both out for two weeks.
The players picked up muscular injuries in the midweek round and the test results are in.
Pasqual suffered a first degree lesion on the femoral bicep and will be sidelined for two weeks.
There were fears Maicon’s problem could be considerably worse, but he too has only a first degree lesion in the right thigh.
The prognosis for the Brazilian is also around 15 days.