.Source: 49ers have Aiyuk profession framework along with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk field demand: 49ers WR very likely to be worked than acquire extension coming from San Francisco, per record CBS SportsReport: 49ers possess structure in place for Brandon Aiyuk trade with two crews San Francisco ChronicleReport: 49ers have actually exercised frameworks of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers expert offers latest update on Aiyuk as profession rumors swirl Yahoo Athletics.