Second-place Roma rallied to beat Atalanta 2-1 on Saturday as the Serie A resumed after the international break.
Roma have announced Leandro Castan is to undergo surgery on his brain in order to cure a condition known as "cavernoma".
Roma defender Mapou Yanga-Mbiwa is expected to be out of action for three weeks with an injury to his right thigh.
Roma responded to Juventus' record-breaking hammering of Parma with a convincing 3-0 home victory over Torino.
Juventus reasserted their absolute authority in Serie A by humiliating Parma 7-0 in Turin on Sunday.
Juventus capitalised on Roma's loss to re-establish a three-point lead in the Serie A title race by beating Empoli 2-0.
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