.Resource: 49ers possess Aiyuk field framework with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk trade need: 49ers WR most likely to become worked than acquire extension from San Francisco, per report CBS SportsReport: 49ers possess framework in location for Brandon Aiyuk patronize two teams San Francisco ChronicleReport: 49ers have worked out structures of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers insider offers most recent update on Aiyuk as trade gossips swirl Yahoo Sports.