.Source: 49ers possess Aiyuk trade framework with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk business requirement: 49ers WR more likely to become worked than receive expansion coming from San Francisco, every record CBS SportsReport: 49ers possess platform in position for Brandon Aiyuk trade with two staffs San Francisco ChronicleReport: 49ers have exercised structures of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers insider gives most recent update on Aiyuk as trade rumors swirl Yahoo Athletics.