.Source: 49ers have Aiyuk business structure along with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk business demand: 49ers WR most likely to become worked than get expansion coming from San Francisco, per file CBS SportsReport: 49ers possess platform in location for Brandon Aiyuk patronize pair of staffs San Francisco ChronicleReport: 49ers have worked out platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider offers most recent improve on Aiyuk as business rumors swirl Yahoo Athletics.