Ulster claimed a hard-fought win over Leinster in their interpro derby at the RDS last night in the United Rugby Championship.
Nick Timoney scored two tries in a 22 points to 21 victory.
Munster will hope for positive injury news on tighthead Oli Jager and back row Jack O'Donoghue.
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The pair were stretchered off during their 22 points to 9 defeat away to Connacht in the URC yesterday.
