Victory may boost Manning endorsements.

(From AFX Europe (Focus))

NEW YORK (AFX) -

Indianapolis Colts quarterback Peyton Manning is already the NFL's most prolific pitchman, but marketing experts say a Super Bowl win could catapult him to a level few gridiron stars have ever achieved.

In case he wasn't feeling enough pressure about Sunday's game in Miami, the two-time NFL most valuable player should consider this: Experts say a win could allow him to not only triple his income from endorsement deals but also command profit-sharing or ownership stakes from the companies he endorses.

"With a victory Sunday, he will be at the top of his marketing game," said Henry Schafer, executive vice president of Marketing Evaluations Inc., which gives ratings called "Q Scores" to celebrities based on their commercial appeal.

"He will have the platform to transcend the sport of football to an even greater extent than he does now."

Manning pocketed $11.5 …