AS Roma lost third place in Serie A when they slumped to a 2-0 defeat at Parma after Mattia Sprocati and Andreas Cornelius grabbed second-half goals on Sunday to end the visitors' six-match unbeaten league run.
Roma, playing three days after a Europa League defeat by Borussia Monchengladbach, nearly went ahead midway through the second half when Aleksandar Kolarov rattled the woodwork with a free kick and Javier Pastore's effort from the rebound was brilliantly saved by Luigi Sepe.
Discriminatory chants prompted a Serie A game between Roma and Napoli to be briefly suspended on Saturday.
Referee Gianluca Rocchi made the decision in the second half after Roma fans aimed anti-territorial chants at Napoli.
Such chants are often used by supporters to deride an opposing club's city and are treated by officials in the same manner as racist chants -- which an Associated Press photographer next to the pitch also heard being aimed at Napoli defender Kalidou Koulibaly.