The Warriors are under no illusion of the battle on their hands and must win on French soil and deny their hosts anything at all to secure their own place in the quarter-finals.
Stade Français Paris, who narrowly lost last season's Amlin Challenge Cup final in Cardiff to Harlequins, won the first game between the two sides, 23-14, at Sixways Stadium.
Banca Monte Crociati v Bucharest Wolves
(Saturday January 21, KO 15:00)
BANCA MONTE Crociati will be seeking revenge when they host the Bucharest Wolves in both sides final Pool 1 game of this season's Amlin Challenge Cup on Italian soil this weekend.
The Italian Super 10 outfit, who are only in their second season of European competition, are still looking for their first points and victory, having lost all of their previous five games during this campaign.
The Wolves won the previous games between the two sides on Romanian soil before last year and will be looking for to achieve their own 'double' over the Italian part-timers at the Stadio XXV Aprile.