.Source: 49ers have Aiyuk business framework along with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk business need: 49ers WR more likely to be worked than get extension from San Francisco, per report CBS SportsReport: 49ers possess structure in position for Brandon Aiyuk patronize 2 crews San Francisco ChronicleReport: 49ers have actually worked out platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider gives most up-to-date update on Aiyuk as business rumors swirl Yahoo Sports.