.Source: 49ers have Aiyuk business structure with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk field need: 49ers WR most likely to be dealt than receive expansion coming from San Francisco, every record CBS SportsReport: 49ers possess structure in position for Brandon Aiyuk patronize 2 staffs San Francisco ChronicleReport: 49ers have exercised platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider gives most current update on Aiyuk as profession reports swirl Yahoo Athletics.