Source: Cointelegraph.com NewsPolyient is launching an NFT marketplace with DeFi features, Ronaldinho has entered the NFT market and Vitalik Buterin has digitally signed an NFT for very little money.Read MoreNFTs, Ronaldinho, Polyient, PolyientX, DeFi, Animoca Brands, Blowfish, Crypto gaming, Crypto games, Vitalik Buterin, Autograph NFT