.Source: 49ers have Aiyuk profession structure along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk business need: 49ers WR most likely to become worked than obtain expansion coming from San Francisco, per file CBS SportsReport: 49ers have framework in place for Brandon Aiyuk trade with pair of groups San Francisco ChronicleReport: 49ers have worked out frameworks of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers insider gives most up-to-date update on Aiyuk as trade reports swirl Yahoo Athletics.