A sports card with the signatures of two of the greatest basketball players ever sold for a record price this weekend.

For those in the sports card buy-sell-trade business, a new chart-topping sale is making the rounds. According to The Athletic, a professionally-graded 2007 dual-autograph Michael Jordan and Kobe Bryant card sold for $12.9 million, a record-breaking number in the hobby.

Chicago Bulls great Michael Jordan and late Los Angeles Lakers legend Kobe Bryant were two of the greatest players the NBA saw in the last 35 years or so. Jordan became arguably the greatest ever by leading the Bulls to six championships and winning 10 scoring titles and five MVPs,