New Delhi, Oct. 23 -- The NFL has approved a landmark deal that sees billionaire Julia Koch acquire a 10% stake in the New York Giants, valuing the team at an unprecedented $10.3 billion. This marks the highest valuation ever for an NFL team in a minority stake sale.

"The New York Giants are proud to announce today an investment in the club by Julia Koch and her family. The family has acquired a minority, non-controlling interest in the Giants, one which will further support the growth of the organization, deepen its community impact, and embrace future opportunities," the Giants stated in a release.

Julia Koch, widow of billionaire industrialist David Koch, is one of the world's wealthiest women, with a net worth estimated at over $60 ...