If you're playing FIFA 14 on your brand new Xbox One today you may be experiencing some problems. In a blog post EA notes issues with both the PS4 and Xbox One versions (of course, PS4 isn't out here yet).
Most notably the Xbox One version suffers from two bugs that will hopefully be eradicated by the Day 1 patch:
"Controller Bug: Using two separate controllers, both assigned to user profiles, and then using controller two to navigate the bootflow when FIFA 14 is loading can result in a crash. The FIFA dev team will be fixing this issue as soon as possible (shortly after launch) but, in the meantime and as a workaround: please only use controller one to navigate the bootflow of FIFA 14. You can turn on and use the controller two once in the main menu.
Bootflow Issue: If you suspend the console (leave it inactive until it 'sleeps') on the title screen in the Xbox One bootflow, you will not be able to access any online features when returning from an unsuspended state. As a workaround: don't suspend the console when on the title screen. If you do, simply restart the console (XB1 Only)."