Sharks website editor Michael Marnewick reports that Sharks team doctor, Alan Kourie has released a medical update on four players currently on the injury concern list.
Prop Thomas du Toit is still suffering from a toe injury and is unlikely to make this weekend's match against the EP Kings at Kings Park.
Conrad Hoffmann, a late withdrawal from the team that played the Blue Bulls on the weekend has a buttock muscle strain and a fitness call will be made later in the week.
Similarly lock Lewies, who has a chronic knee problem, may be ready by the end of the week should he be passed fit.
Jacques Botes has a SC joint sprain but will also be subjected to a fitness test to ascertain his availability in this game.
"Winning at Loftus is big, for anybody, but the secret is to put that behind us and turn our attention to the next challenge. All our thinking is now on the EP Kings," said Sharks forwards coach Paul Anthony.
"They will come here with nothing to lose and we need to focus purely on them."