UEFA has charged Feyenoord with racist behaviour after their fans threw an inflatable banana on the pitch last week.
Feyenoord manager Fred Rutten will leave the club at the end of the season when his one-year contract expires.
Ajax staged a late rally to beat PSV Eindhoven 3-1 on Sunday to give their faint title hopes a boost.
Feyenoord's Europa League round of 32 second leg clash with Roma has been labelled high-risk by police in Rotterdam.
Police arrested 23 Feyenoord fans in Rome after trouble flared before their game with Roma, Italian authorities said.
Feyenoord slipped 20 points behind leaders PSV in Eredivisie after a 2-0 defeat at lowly Heracles on Saturday.
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