France legend Serge Betsen tells Sportsmail where he thinks Clermont's clash with Saracens at Stade Geoffrey-Guichard will be won... HEAD TO HEADS . Wesley Fofana v Brad Barritt . If there is one genius in French rugby at the moment, it’s Wesley Fofana. The kid is so talented and skilful that something happens every time he gets the ball so Saracens will need to focus on him. He is up against Brad Barritt, who is not as easy on the eye but is a very solid unit for Saracens — hence why they have made him captain. He reminds me of former British Lions flanker Richard Hill — someone you don’t really notice but is so important for the team. Clermont centre Wesley Fofana was in scintillating form during his side's recent destruction of Northampton . Brad Barritt is back to anchor the Saracens midfield against the Top 14 giants . Julien Bonnaire vs Billy Vunipola . Julien Bonnaire may be a flanker and Billy Vunipola a No 8, but when you play flanker, you’re the first man who is going to tackle the No 8. Saracens will be looking to launch Vunipola as chief ball-carrier from the back of the scrum and Bonnaire will be there to stop him. Fritz Lee performs a similar running role for Clermont, but Vunipola is key to Saracens’ game plan. No 8 Billy Vunipola is a Saracens' most devastating ball carrier and his power will be needed on Saturday . Brock James v Charlie Hodgson . How will Brock James handle the occasion? His skills and game management are second-to-none, but he has been known to succumb to the pressure on the big stage. Saracens will try to get in his face early to disrupt the rhythm. Charlie Hodgson has been around for a long time now and is enjoying some good form. KEY AREAS . Rush defence . A red and black wall of defenders stopped Clermont from scoring a try in last year’s semi-final, which Saracens won so ruthlessly. Their defensive line was up so quickly and Clermont were taken by surprise. When you play against that sort of rush defence, you need to stand deeper in attack and maybe exploit it by kicking over the top. But Clermont are most effective with the ball in hand, especially with their back-three combination of Noa Nakaitaci, Naipolioni Nalaga and Englishman Nick Abendanon. Former Bath full back Nick Abendanon is just one of several dangerous backs at Clermont's disposal . Breakdown battle . In France, training is geared more towards flair and creativity so less time is spent working on the breakdown. During my time with Wasps, we spent hours focusing on the post-tackle area. Clermont will fear Jacques Burger after his performance on the flank last year and they must work hard to nullify him around the edges of the breakdown. The key for the French is to keep their discipline and not concede penalties. Clermont will be wary of Saracens flanker Jacques Burger following his tour-de-force in Twickenham last year . Silence the crowd . Although this game is being played at a ‘neutral’ venue, it will still feel like a home game for Clermont. The Top 14 side have the best supporters in French rugby and it’s only a 90-mile journey to the Stade Geoffroy-Guichard in St Etienne for their fans, who follow their side everywhere. Saracens must be wary of the reception they’ll get but they can keep the fans quiet by building an early lead. When Clermont are behind, their heads can drop. But my gut tells me they will come away with the win today. Clermont warm up in front of their fans at Stade Marcel Michelin before their Top 14 game against Oyonnax .
Saracens skipper Brad Barritt will line up opposite Wesley Fofana .
Flanker Julien Bonnaire will be tasked with stopping Billy Vunipola .
Charlie Hodgson is enjoying a rich vein of form at present .
Clermont will fear Jacques Burger after his performance last year .
The Top 14 side have the best supporters in French rugby .