Marco Masotti, the owner of the struggling Sharks side, has taken to X to respond to John Smit's criticism.
The Stormers battled their way back against Ulster to clinch a 13-7 victory in their United Rugby Championship encounter in Cape Town on Saturday.
Ospreys kept alive their hopes of an end of season play-off spot with an impressive 36-21 bonus-point win over the Lions in Swansea.
Player-of-the-match Jack Conan was one of five second-half try scorers for Leinster in a dominant 47-14 United Rugby Championship (URC) win over the Bulls at the RDS.
Vincent Koch believes Edinburgh boss Sean Everitt will highly motivated when his side take on the Sharks in their United Rugby Championship encounter in Durban on Saturday.
Long-time teammates Steven Kitshoff and Frans Malherbe are set to be on opposite sides of the scrum this weekend in a first for the two Springbok greats.