KBK Sports is holding weekend card auctions featuring autographs, rookies, and vintage items, with the New England Patriots Auction offering autographs, cards, and collectibles, both ending on May 5. The Boston Red Sox Auction with autographs, cards, and collectibles ends on May 12. KBK Sports Thursday Auction and Thursday Baseball Auction, both featuring autographs, cards, and collectibles, end on May 7.