Leinster and Glasgow go head to head in the Rabo Direct Pro12 tonight and the reward for the winner is top spot in the table.
Leinster and Glasgow are on 59 and 61 points respectively and the winner will leapfrog first placed Ulster who are on 62 points having played a game more.
Kick off at the RDS is 7.45.
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Before that game there is an inter-provincial derby at Musgrave Park where Paul O'Connell will start for Munster who host Connacht at 5.45pm.
©INPHO/Ian MacNicol