.Resource: 49ers have Aiyuk field framework along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk profession need: 49ers WR most likely to be worked than acquire expansion coming from San Francisco, per report CBS SportsReport: 49ers possess framework in position for Brandon Aiyuk trade with 2 crews San Francisco ChronicleReport: 49ers have actually exercised platforms of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers expert gives latest update on Aiyuk as profession gossips swirl Yahoo Sports.