The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
Haskell is expected to feature in a Top 14 game this weekend against Toulouse.
However, the RFU insist they have an agreement in place with Stade, meaning the 24-year-old is not obliged to return to France during Elite Player Squad periods.
"No agreement has ever been signed with the RFU, contrary to what they claim," the club said in a statement. "If it has, let the RFU produce it.
"The RFU must be confusing us with other French clubs like Toulon, who had to accept one for the current season in relation to Jonny Wilkinson.
"For all these reasons, we are ordering James Haskell, who has already missed two training sessions, to return most urgently."