Sharks call up the 'Giant'
Van der Walt could not join his teammates on their pre-season travels becuase he is suffering from concussion.
The Sharks will play European Champions Toulon on February 5 and Toulouse on February 11.
Revised Sharks squad: Christiaan de Bruin, Andre Esterhuizen, Coenie Oosthuizen, Cobus Reinach, Daniel du Preez, Garth April, Dave McDuling, Heimar Williams, Etienne Oosthuizen, Joe Pietersen, Franco Marais, Johan Deysel, Francois Kleinhans, Lwazi Mvovo, Gerhard Engelbrecht, Michael Claassens, Hyron Andrews, Odwa Ndungane, Jean-Luc du Preez, Patrick Lambie, Juan Schoeman, Paul Jordaan, Kyle Cooper, S’bura Sithole, Lourens Adriaanse, Stefan Ungerer, Marcell Coetzee, Wandile Mjekevu, Lubabalo Mtyanda, Willie le Roux, Ruan Botha, Tendai Mtawarira.