Racing Metro have confirmed Argentinean playmaker Juan Martin Hernandez will join the Top 14 club next season.
The 27-year-old will return to Paris from the Sharks having previously spent five seasons with rivals Stade Francais.
Hernandez has agreed a two-year deal, with the option of a further 12 months, and will be joined by a raft of fellow new signings.
Perpignan scrum-half Nicolas Durand, highly-rated France winger Benjamin Fall, who joins from Bayonne, and Italy back Mirco Bergamasco (Stade Francais) have also caught the eye by moving to Racing.
And the Parisians have also agreed deals with props Julien Brugnaut (Munster), Benjamin Sa (Montauban) and Scott Zimmermann (Brive), Montauban lock Karim Ghezal and flanker Antoine Battut, and winger Albert VuliVuli (Bourgoin).