UEFA has ordered Lazio to play a Europa League match in an empty Olympic Stadium because of further racist chanting by fans.
UEFA says the Rome club was found guilty for its fans' "racist behaviour" and displaying an "inappropriate banner" when it hosted Legia Warsaw on September 19.
The closed-door sanction will apply when Lazio plays Apollon of Cyprus on November 7.
UEFA says it also fined Lazio E40,000 ($A58,000).
Lazio was repeatedly sanctioned by UEFA last season over its fans' behaviour, including making fascist salutes.
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UEFA says it also warned Lazio coach Vladimir Petkovic because of a late kickoff against Legia.
