.Resource: 49ers possess Aiyuk field framework along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk field demand: 49ers WR very likely to become worked than receive extension from San Francisco, every document CBS SportsReport: 49ers have platform in position for Brandon Aiyuk patronize two crews San Francisco ChronicleReport: 49ers have actually worked out platforms of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers insider gives most up-to-date update on Aiyuk as field gossips swirl Yahoo Sports.