"Shark Tank" star investor Kevin O'Leary revealed Monday that he was one of three people to purchase a Kobe Bryant and Michael Jordan collectible sports card for nearly $13 million at a Heritage Auctions event this past weekend.

Not only did the Jordan/Bryant card, which was called a Holy Grail by ESPN, break a record, but it is the second most expensive sports collectible, second only to Babe Ruth’s 1932 World Series “called shot” jersey. That sold for $24.12 million last year.