Simplify the following text for a Grade 7 native English-speaking person.
Original: The main feud heading into WrestleMania on the SmackDown brand was between John `` Bradshaw '' Layfield and John Cena , with the two battling over the WWE Championship .
Simplified: The main feud heading into WrestleMania on the SmackDown ! brand was between John `` Bradshaw '' Layfield and John Cena for the WWE Championship .