i'm confused that it says shut out a team on all star/Legend (exbition bla bla)

i was thinking all star/legend was a mode in exibition???? but can't see it, so my next guess is, is it a team of high standard or something?

i've played the pats against the chiefs and shut them out successfully and i thought this would complete the achievement from what other people have posted.

any help mucho appreciated!

The difficulty of the game must be set at all star/legend from the settings menu.  Then you just play an exibition game and shut the computer out.

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6 June 2008. RIP first Xbox.