.Resource: 49ers have Aiyuk field platform with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk business demand: 49ers WR most likely to become dealt than obtain expansion coming from San Francisco, every record CBS SportsReport: 49ers possess framework in place for Brandon Aiyuk trade with 2 staffs San Francisco ChronicleReport: 49ers have actually exercised platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert provides most recent update on Aiyuk as business reports swirl Yahoo Athletics.