.Resource: 49ers have Aiyuk profession structure with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk profession demand: 49ers WR most likely to become handled than obtain expansion coming from San Francisco, every document CBS SportsReport: 49ers have framework in position for Brandon Aiyuk patronize 2 crews San Francisco ChronicleReport: 49ers have actually exercised frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider gives most current update on Aiyuk as business stories swirl Yahoo Sports.