Worcester Warriors know their daunting trip to Perpignan for the quick-fire return tie probably holds the key to their ambitions of qualifying from Pool 2 for the Amlin Challenge Cup quarter-finals.
The English Premiership club did half of the job with their narrow 22-21 victory over their Catalan rivals at Sixways Stadium in the first leg of an intriguing double-header.
The Warriors veteran fly-half Andy Goode scored all of his side's points, including a try, a conversion and five penalties to outshine his opposite number for Perpignan, James Hook.
The English Premiership side do have a three-point cushion and have won all three of their Pool games, having already beaten Spanish side Bizkaia Gernika and Italian outfit Femi-CZ Vea Rovigo.
The Catalans will fancy their chances at home at the intimidating Stade Aime Giral, which has become a fortress for them, in the return clash in the south of France on Saturday night.
Perpignan very rarely lose on their home patch and will be confident they can record a victory to put them back at the head of the Pool and in with a chance of a places in the knockout stages.
Gernika recorded a 13-3 home victory over Rovigo to post their first win in the Pool, but both sides are now only playing for pride.
