Simplify the following text for a Grade 9 native English-speaking person.
Original: After the dark match , the pay-per-view event began with an in-ring segment featuring Raw General Manager William Regal and WWE Chairman Vince McMahon , who awarded the WWE Championship to Randy Orton due to John Cena 's injury , which had caused Cena to vacate the title .
Simplified: The event began with WWE Chairman Vince McMahon and Raw General Manager William Regal coming to the ring . McMahon reiterated that former WWE Champion John Cena would be out of action between six months and one year .