John Cena tweets about "perseverance" following split from Nikki Bella
John Cena meets with fans he helped inspire in new video
'American Grit' ousts Melanie Mahanna after battle against Carla Mireles and love interest Herman Barr
'American Grit' eliminates Will Westwater and Shermon Braithwaite after showdown against Carla Mireles
'American Grit' recap: Cadre Riki Long loses team member Gill Morton
'American Grit' recap: Cadre Chloe Mondesir loses team member Nathalie Martin
'American Grit' recap: Four new military cadres introduced, one competitor goes home
