Simplify the following text for a Grade 5 native English-speaking person.
Original: Weeks before their scheduled bout at SummerSlam , Orton attacked Cena on three separate occasions by performing RKOs on him . At SummerSlam , Orton lost the title match to Cena , who pinned Orton after executing an FU .
Simplified: Orton lost to Cena at Summerslam .