.Resource: 49ers have Aiyuk profession platform with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk business need: 49ers WR more probable to be worked than get extension from San Francisco, per file CBS SportsReport: 49ers possess framework in position for Brandon Aiyuk trade with pair of teams San Francisco ChronicleReport: 49ers have exercised platforms of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers insider provides most current update on Aiyuk as profession reports swirl Yahoo Sports.