Henry Arundell scored a hat-trick on his Racing 92 debut (Emmanuel DUNAND)

When England head to Lyon on Saturday to face France in a potential Six Nations title decider they will be shorn of four members of the side that took them to a surprise third place in the Rugby World Cup in October.

Lock Dave Ribbans, back-rower Jack Willis, centre Joe Marchant and winger Henry Arundell have left English clubs for outfits in the French Top 14 and are now ineligible for Steve Borthwick's side.