The 19-year-old Silvera came off the bench late in the Mariners’ action-packed 3-2 win over Victory at Central Coast Stadium.
A day later Los Angeles FC listed Silvera among three trialists on their pre-season roster for a camp that started at the club’s performance centre in California.
AAP has sought comment from the Mariners about whether Silvera has already left Gosford or is en route to the United States for the camp.
Silvera was hailed by ex-Socceroos winger Robbie Slater as the best youngster to emerge this A-League season after his man-of-the-match display against Perth Glory in November.
The teenager began the season on a scholarship deal with the Mariners but signed a senior contract until May 2022 after impressive displays in the FFA Cup and A-League.
The skilful forward has made 11 appearances for the Mariners, scoring one goal.
One of five MLS teams in the 2020 Concacaf Champions League, LAFC begin their season on February 18 against Mexican team Club Leon.
The LAFC squad, managed by former US national team coach Bob Bradley, includes former Arsenal striker and reigning league MVP Carlos Vela.
Socceroos left-back Brad Smith won the MLS Cup last year with Seattle Sounders, along the day defeating LAFC in the semi-finals.
Tim Cahill is the most high-profile Australian to play in the MLS, netting 16 goals across three seasons from 2012.