Leinster head coach Leo Cullen says his team showed grit to overcome the Stormers in an "arm wrestle" last night.
The defending champions overcame their South African opponents by 20 points to 11 at the Aviva Stadium in the URC semi-finals.
It sets up a repeat of last year's decider, with Leinster set to take on the Bulls at Croke Park on Friday week.
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