.Source: 49ers have Aiyuk field platform along with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk trade need: 49ers WR more probable to be worked than acquire expansion coming from San Francisco, per file CBS SportsReport: 49ers possess platform in position for Brandon Aiyuk patronize 2 crews San Francisco ChronicleReport: 49ers have actually worked out frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider provides most up-to-date upgrade on Aiyuk as trade reports swirl Yahoo Sports.