Simplify the following text for a Grade 10 native English-speaking person.
Original: Royal Rumble ( 2011 ) was the twenty-fourth annual Royal Rumble professional wrestling pay-per-view event made by World Wrestling Entertainment ( WWE ) .
Simplified: The pay-per-view featured the annual Royal Rumble match , which has been featured at every Royal Rumble event since its inception . As opposed to the traditional thirty participants , forty entrants were scheduled for the 2011 Royal Rumble match , the most in the history of the event .