Just follow this Video I made :)
My Madden > Rosters > Create-A-Player > Player Info.
Now change First name from 'New' to 'John', Then change Last name from 'Player' to 'Madden'
Now back out, The good thing here is that you don't have to save it. Just press
(B) > (B) and select 'Keep player without saving'.
There you go, 50 really easy G