.Source: 49ers have Aiyuk business platform along with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk trade demand: 49ers WR most likely to become worked than get extension from San Francisco, per document CBS SportsReport: 49ers possess platform in place for Brandon Aiyuk trade with two staffs San Francisco ChronicleReport: 49ers have actually exercised frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert offers latest improve on Aiyuk as business stories swirl Yahoo Sports.