They will look to extend their winning run in the Premier League to 11 when they take on Alan Pardew’s side.
But Wilkins says they have to be wary of Zaha, who has received high praise for his recent performances.
“Wilfried Zaha’s got half a chance to perform on Saturday against Chelsea”
Former Chelsea coach Ray Wilkins on Wilfried Zaha
“If he (Zaha) gets past Alonso then he’s got Cahill,” Wilkins told talkSPORT.
“And centre halves don’t like going wide.
“Wilfried’s got half a chance to perform on Saturday.”
In contrast to Chelsea’s stunning form, Palace have won just once in their last 10 league fixtures.
The Blues have conceded just twice in their winning run and are six points clear at the top.