Northampton have confirmed George North will miss Saturday's European Champions Cup quarter-final at Clermont Auvergne.
Stade Francais recorded a thrilling 40-26 win over Clermont Auvergne, while Toulouse came from behind to shock Toulon.
Julien Bonnaire has signed a two-year contract with Lyon, while Irish centre Eamonn Sheridan has joined US Oyonnax.
He narrowly missed out on a Six Nations title but Jonathan Davies has three other trophies in his sights in 2015.
Rupert Cox shares his highlights from the week's rugby action in his round-up blog.
Toulon once again find themselves at the top of the French domestic league thanks to a five-try win over Brive.
France scrum-half Morgan Parra will miss the rest of the Six Nations after being ruled out for at least 10 weeks.
Clermont and Stade Francais both suffered losses in the Top 14, leaving them locked together with new leaders Toulon.
More of the games that matter on Sky Sports
Watch the action with a Day or Week Pass
Buy tickets for Sale and Barbarians v Argentina.
For all the latest news, features and videos
We've a host of top class rugby union action