.Resource: 49ers possess Aiyuk profession framework with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk business demand: 49ers WR more probable to become handled than get extension coming from San Francisco, per record CBS SportsReport: 49ers have platform in place for Brandon Aiyuk trade with pair of crews San Francisco ChronicleReport: 49ers have actually exercised platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert offers newest update on Aiyuk as business stories swirl Yahoo Sports.