Both clubs have taken maximum points from their meetings with Femi-CZ VEA Rovigo and Bizkaia Gernika but the back-to-back meetings between the big two of the group will go a long way to settling the Pool 2 winner and the team who will advance to the knock-out stages in April.

Richard Hill's Warriors gave Premiership leaders Harlequins a real fright last weekend before having to settle on a losing bonus point and have three wins and a draw from their 10 domestic fixtures while Perpigan, who have James Hook back from international duty, are in eighth spot in the Top 14 after hammering Agen 39-13 last weekend.

Gaining a psychological advantage from their Round 3 meeting will be crucial ahead of the return nine days later at Stade Aime Giral.

Match Facts
• This is the first meeting between these two sides in the Amlin Challenge Cup; Worcester Warriors have faced French teams 19 times before in this competition, winning 10 and losing nine.
• Worcester have lost their last five encounters against French sides.
• Worcester (87.5) and Perpignan (84.5) have averaged more points than any other team in the Amlin Challenge Cup this season. Worcester have also averaged the most tries (13.5).
• Joe Carlisle (Worcester) has scored the most points since the start of the competition (50) while Adrien Plante (Perpignan) has scored the most tries (6).