But even with his busy schedule , Cena never fails to neglect his No. 1 priority -- defending the WWE Championship .
Cena insists on keeping a whirlwind pace to promote The Marine , WWE and WWE Films .
Even with Cena 's busy schedule , Cena never fails to neglect his No. 1 priority -- defending the WWE Championship .
Cena insists on keeping a whirlwind pace to promote The Marine , WWE and WWE Films .