George Ford and Jonathon Joseph have been  combining superbly for club and country. Photograph: Michael Steele/Getty Images

Negate Joe Marler at the scrum and the home side will win the battle of quick ball

France’s Vincent Debaty  made a big impact on his introduction against Ireland and had a hand in the French try. Photo: Franck Fifefrank/AFP/Getty

Teams seeking to create mismatches both in athletic and fatigue terms in the last quarter

Paul O’Connell and his team-mates had the character and fitness levels to withstand the charge of the French bench in the second half. Photograph: Dan Sheridan/Inpho

Sexton immaculate in the accuracy of kicking and the way he run his backline

France winger Teddy Thomas offloads against Scotland. Photograph: Billy Stickland/Inpho

French bench will inject massive muscle but home side can exploit lack of cohesion

Tommy O’Donnell breaks away from the Italian defence to score Ireland’s second try at the Stadio Olimpico in Rome. Photograph: Gabriel Bouys/AFP/Getty

Tournament could be decided by who earns biggest win over weakest side

Toulon’s Martin Castrogiovanni is playing much looser than previously and is nowhere near as violent in the breakdown. Photograph: David Rogers/Getty Image

New lease of life at Toulon makes experienced prop a real danger man

A screengrab of the ruck which Wasps’ number eight Nathan Hughes sprung through to score a try and prevent Leinster winning in the Ricoh Arena.

Wasps’ scorer handled ball in ruck – it seemed clear at time and video replay confirmed it

Wasps’ James Haskell is no Vunipola but he does damage, partly because of his physique but mainly because of his attitude. Photo: Laurence Griffiths/Getty

Limited Wasps are no Saracens and Leinster have the pedigree to prevail

Billy Vunipola of Saracens. Vunipola will be one of Munster’s main challenges when they face Saracens at Allianz Park. Photograph: David Rogers/Getty Images

Saracens home pitch one of the obstacles in next European Champions Cup clash

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