CAMDEN, N.J. -- Kobe Bryant says in a court filing that he never gave his mother permission to sell mementos from his high school days and early professional basketball career.

Bryant is in a court battle over whether hundreds of items can be auctioned off.

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Pamela Bryant says the NBA star told her the memorabilia was hers. She arranged earlier this year to auction it off through Berlin, N.J.-based Goldin Auctions and received a $450,000 advance.

Last week, lawyers for the NBA star wrote to the auction house demanding it cease the June sale. Goldin is suing to assert its right to sell.

In a filing Wednesday in U.S. District Court in Camden, Kobe Bryant says his mother acknowledged to him recently that she did not have permission to sell the items.