.Source: 49ers possess Aiyuk field framework along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk business need: 49ers WR more likely to be dealt than obtain extension coming from San Francisco, every file CBS SportsReport: 49ers have structure in location for Brandon Aiyuk trade with 2 crews San Francisco ChronicleReport: 49ers have actually worked out structures of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers expert provides most current upgrade on Aiyuk as field rumors swirl Yahoo Sports.