Brive fly-half Matthieu Ugalde has been slapped with a 14-week ban after being found guilty of eye-gouging.
Ulster Rugby have signed Georgian tight-head prop Anton Peikrishvili in a bid to ease their front-row injury crisis.
Champions Cup holders Saracens have been drawn against Toulon while Bath will meet Bristol in the Challenge Cup.
Robbie Henshaw made a try-scoring return as Connacht secured a place in the European Challenge Cup quarter-finals.
Ireland centre Robbie Henshaw makes his return for injury in Connacht's must-win clash with Enisei.
Team of the week includes strong semi-finalists and leaders of the pack from the Top 14 and Super Rugby.
Challenge Cup holders Gloucester can book their place in the knockout stages with victory over La Rochelle on Saturday.
Harequins crushed Calvisano, Sale beat Castres, while Brive and Zebre posted easy wins in the European Rugby Challenge Cup.
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Barbarians v South Africa
5th November 2016