Montpellier are set to announce the signatures of the du Plessis brothers this week as they look to recover from a disappointing season.
Saturday's defeat to Stade Français ended Montpellier's hopes of reaching the Top 14 play-offs, and they need a bonus-point win over Clermont next week to have any hope of making the Champions Cup play-offs.
As a result Jake White has embarked on an ambitious recruitment drive, with the Sharks pair Bismarck and Jannie du Plessis on their way according to RMC.
The move had already been rumoured earlier this season, when Fabien Galthié was still in charge, however the change of coach had put the move in doubt.
However it appears the brothers will stick with their decision to join the club despite interest from Toulon.
"Some big names will be announced in the coming days. To win the Top 14 you need the best players in the world," said White after the loss in Paris.