Oosthuizen off to Lyon
According to Lyon's website, Oosthuizen has signed a three-year contract, while Van der Merwe has agreed to a two-year deal.
In other news coming out of France, English flyhalf Toby Flood has quit fallen French Top 14 giants Toulouse by mutual agreement, the club said on Tuesday.
The 31-year-old had a year left on his contract but "will not see out his final season with the club" which he joined in 2014.
The former England international has played 60 games for Toulouse scoring 337 points. Capped 60 times for England, he previously played for Newcastle Falcons and Leicester Tigers.
His departure is the 12th from the club which has had a disastrous season, the 19-time French champions failing to make the Top 14 play-offs for the first time in 41 years.
Bordeaux-Begles announced the arrival of Rory Teague as their new backs coach.
The 32-year-old has worked on England's coaching staff since last year and will travel with the England squad for the two-Test tour in Argentina next month before taking up his new position in France.
Agence France-Presse & lourugby.fr
#OFFICIEL ! 2 nouvelles recrues pour la saison #LOU1718 !
Bienvenue à Etienne Oosthuizen @4_Etienne et… #TEAMLOUhttps://t.co/micEtr2PYj pic.twitter.com/qUsHQh2eJx
— LOU Rugby (@LeLOURugby) May 9, 2017
