.Source: 49ers possess Aiyuk trade platform with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk field demand: 49ers WR more probable to be dealt than acquire extension coming from San Francisco, per report CBS SportsReport: 49ers have framework in place for Brandon Aiyuk trade with pair of staffs San Francisco ChronicleReport: 49ers have actually worked out frameworks of Brandon Aiyuk trades with Browns, Patriots 49ers Webzone49ers expert offers most recent upgrade on Aiyuk as profession rumors swirl Yahoo Athletics.