La Liga - Van Persie slates Barca
The striker laid into European champions Barcelona in astonishing attack on a Dutch TV show for what he sees as their cynical attempts to influence match officials.
"They always go up to referees in an attempt to get an opponent booked," he said.
"They are trying to screw fellow professionals. That really annoys me.
"The Barcelona players nag about everything that happens on the pitch. I was disappointed with that."
The Dutch star also had stern words for Chelea, accusing them of constant "bitching" about referees.
"People who are watching the game on television and fans really do not want to see these kind of things," he said.
"If you want to witness a lot of complaints, you should just go the bakery or something. There's always people nagging there as well.
"Chelsea players are always bitching against the referees. I really cannot understand that. Just shut the f*** up and focus on playing football."