.Resource: 49ers possess Aiyuk business framework along with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk trade need: 49ers WR most likely to be dealt than obtain extension from San Francisco, per report CBS SportsReport: 49ers possess framework in place for Brandon Aiyuk patronize two crews San Francisco ChronicleReport: 49ers have exercised platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert offers most current improve on Aiyuk as trade reports swirl Yahoo Sports.