.Resource: 49ers have Aiyuk trade platform with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk profession demand: 49ers WR more likely to be worked than acquire extension coming from San Francisco, every record CBS SportsReport: 49ers possess structure in location for Brandon Aiyuk trade with pair of crews San Francisco ChronicleReport: 49ers have worked out frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert offers latest improve on Aiyuk as trade gossips swirl Yahoo Sports.