.Resource: 49ers possess Aiyuk business structure along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk field requirement: 49ers WR more likely to become handled than obtain expansion coming from San Francisco, per report CBS SportsReport: 49ers have structure in position for Brandon Aiyuk trade with two crews San Francisco ChronicleReport: 49ers have exercised frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider gives most recent improve on Aiyuk as profession reports swirl Yahoo Sports.