.Resource: 49ers possess Aiyuk profession structure with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk trade need: 49ers WR very likely to be dealt than receive expansion from San Francisco, every file CBS SportsReport: 49ers possess structure in location for Brandon Aiyuk trade with two crews San Francisco ChronicleReport: 49ers have exercised structures of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert offers latest update on Aiyuk as field reports swirl Yahoo Sports.