Kerry-native JJ Hanrahan will start at Out-Half for Munster this afternoon in their Investec Champions Cup opener at Bath.
He'll replace the injured Jack Crowley against the English Premiership champions.
Kick-off is at 8 o'clock.
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Leinster set off on another Investec Champions Cup adventure this evening, welcoming Harlequins to the Aviva Stadium.
Leo Cullen's side have reached three of the last four finals in Europe's premier competition.