Simplify the following text for a Grade 8 native English-speaking person.
Original: The Undertaker immediately signed the contract ; however , before Orton signed the contract , he cut a promo on the Undertaker , stating that he has nothing but respect for him and then claimed that the legend of the Undertaker will become a myth when his 12-0 undefeated streak at WrestleMania , would soon be 12-1 .
Simplified: After both men signed , Orton told Undertaker that he has nothing but respect for him . Shortly afterwards , Orton slapped him and claimed that his 12-0 undefeated streak at WrestleMania , would soon be 12-1 .