LeBron James added a new crown to his collection on Monday: the most expensive basketball card of all time.

According to PWCC Marketplace, a signed 2003 James Exquisite Collection patch card sold for a record-breaking $5.2 million in a private sale.

The buyer of the card was not disclosed.

Per PWCC Marketplace, the card also tied the all-time sports trading card record, set by a 1952 Mickey Mantle card in January.

“This was actually in the works for a while,” PWCC’s director of business development Jesse Craig told Darren Rovell of The Action Network. “The demand for rare cards, especially basketball right now, is just like the demand for fine art.”

Read the complete article from SI.com here.