Watch Aston Villa vs Sunderland Live Streaming
Watch Aston Villa vs Sunderland Live StreamingThe pair are close friends and face each other in an FA Cup quarter-final - the Potters' first in 38 years - at Stamford Bridge on Sunday.
Drogba has earned himself a reputation for diving and Diao said although he had spoken to the Ivory Coast international about it, he did not view it as a problem.
"Myself and others tell him to stop diving," he said.
"But it's part of the show for him. It is not cheating, but part of the entertainment."
Diao is full of admiration for a player he has known for a decade, having first encountered Drogba when the pair were playing in France.
And although Drogba has returned to top form with 25 goals in the current campaign, after struggling last season under Luis Felipe Scolari, Diao believes he can still get better.
