.Resource: 49ers have Aiyuk trade framework with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk profession need: 49ers WR very likely to become dealt than get expansion coming from San Francisco, per report CBS SportsReport: 49ers have structure in position for Brandon Aiyuk trade with two crews San Francisco ChronicleReport: 49ers have actually exercised frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert gives latest update on Aiyuk as business stories swirl Yahoo Sports.