Jessica Biel’s eldest son, Silas, made a rare public appearance with his mother at the 2024 US Open. The nine-year-old was photographed alongside Biel in the stands during a tennis match on August 29th. This outing marked a special occasion for fans, as Silas is rarely seen in public with his mother. Biel and her husband, Justin Timberlake, are also parents to four-year-old Phineas.