.Resource: 49ers possess Aiyuk trade structure with Browns, Patriots NBC Sports Bay AreaBrandon Aiyuk profession demand: 49ers WR more probable to become worked than obtain extension coming from San Francisco, every document CBS SportsReport: 49ers possess platform in location for Brandon Aiyuk trade with two teams San Francisco ChronicleReport: 49ers have actually exercised frameworks of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers expert gives latest improve on Aiyuk as field stories swirl Yahoo Athletics.