Online auction leader eBay (EBAY) said that it will "in the near future" debut an online platform with global auctioneer Sotheby's (BID). The platform will, among other things, let bidders participate in live auctions for antiques and other collectibles taking place at Sotheby's headquarters in N.Y. The partnership mixes Sotheby's expertise in art and collectibles with eBay's technology and payments platform. EBay is slated to report Q2 earnings Wed. after the market closes. EBay shares fell 0.7% to 51.16.