Peyton Manning bid farewell to a record-setting offensive playbook this offseason.

He's finding it tougher to do the same with his favorite geographical pre-snap phrase.

The star quarterback was heard screaming "Omaha" before plenty of plays in Sunday's regular-season opener against the Baltimore Ravens. Some resulted in handoffs. Most ended up with Manning throwing the ball.

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That doesn't necessarily mean Manning changed the play calls, though.

He could just be using his old slogan to catch the Ravens off guard. Or, as his brother eluded in an interview last offseason, the "Omaha" call could be used to help offensive linemen with the snap count.

More likely? Manning is a renowned control freak -- and old habits die hard for 18-year veterans.