.Resource: 49ers have Aiyuk profession structure along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk field need: 49ers WR very likely to be dealt than acquire extension from San Francisco, every file CBS SportsReport: 49ers possess structure in position for Brandon Aiyuk trade with pair of groups San Francisco ChronicleReport: 49ers have worked out platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider offers newest improve on Aiyuk as field reports swirl Yahoo Athletics.