Simplify the following text for a Grade 12 native English-speaking person.
Original: Extreme Rules ( 2009 ) was a professional wrestling pay-per-view ( PPV ) event produced by World Wrestling Entertainment ( WWE ) , which took place on June 7 , 2009 at the New Orleans Arena in New Orleans , Louisiana .
Simplified: Extreme Rules was a professional wrestling pay-per-view event produced by World Wrestling Entertainment ( WWE ) , which took place on June 7 , 2009 at the New Orleans Arena in New Orleans , Louisiana .