.Resource: 49ers have Aiyuk trade framework along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk field requirement: 49ers WR most likely to be dealt than acquire extension coming from San Francisco, per document CBS SportsReport: 49ers have framework in location for Brandon Aiyuk patronize pair of crews San Francisco ChronicleReport: 49ers have actually exercised platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider provides most recent improve on Aiyuk as trade gossips swirl Yahoo Sports.