.Resource: 49ers have Aiyuk trade structure with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk trade demand: 49ers WR more probable to become handled than acquire expansion from San Francisco, every record CBS SportsReport: 49ers have platform in position for Brandon Aiyuk trade with pair of staffs San Francisco ChronicleReport: 49ers have worked out structures of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider offers most recent update on Aiyuk as trade rumors swirl Yahoo Sports.