Ulster have won four of their last five matches against Munster, whilst the Munstermen have not won at Ravenhill since 23 March 2007.
Ulster lost their unbeaten Magners League record with their 16-21 reversal in Edinburgh on Friday evening. The Ulstermen have won their last five games in all competitions at Ravenhill since Ospreys won there, 38-27, on 13 April. Ulster are unbeaten in their last three encounters will fellow Irish provinces.
Munster continue to set the pace in the Magners League but have lost their last two away games in all competitions at Leinster and at London Irish. The Munstermen's only victory in their last five games against fellow Irish sides was 18-12 in Connacht on 18 April.
Referee: Alan Lewis (IRFU, 36th League game).
Assistant Referees: Dudley Phillips, John Carvill (both IRFU).
TMO: Tony Redmond (IRFU).
Live on BBC Sport NI and TG4.