Mickey Mantle card crushes record after selling for $5.2 million

Mickey Mantle is back in the record books. A 1952 Mantle baseball card became the highest-priced sports card ever, selling for $5.2 million, PWCC Marketplace announced Thursday. The Topps card, rated PSA 9 based on the grading system for cards, blew by the previous record of $3.94 million, set in August for a signed Mike…