Anna Kournikova and Andre Agassi Autographs on Penn 4 Tennis Balls. Lot 923. Anna Kournikova and Andre Agassi Autographs on Penn 4 Tennis Balls. Agassi’s signature is 9-10 of 10, and Kournikova’s, 10 of 10. Winning Bid $50. Back to List Winning Bid $50 Back to List