Ulster's hopes of reaching the Investec Champions Cup knockout stages are over.
Dan McFarland's side fell to a 47 points to 19 defeat away to Harlequins this afternoon.
Leinster, meanwhile, will have home advantage in the last 16.
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Leo Cullen's men earned a bonus-point victory away to Leicester Tigers this afternoon - 27-10 the final score at Welford Road.