The NSW Schoolboys trials officially begin tomorrow with ISA, CHS, CCC and AICES teams to play at Rat Park in Warringah. ISA have named four teams to play on Sunday, ahead of the main trials next Friday at Knox. ISA I: Bo Abra (St. Stanislaus’), Liam Aquilina (St. Augustine’s), Riley Hayes (St. Augustine’s), Jack Alcorn (St. Gregory’s), Max Douglas (St. Augustine’s), Hunter Ward (St. Stanislaus’), Donny Freeman (Kinross Wolaroi), Willy Manu (St. Augustine’s), Isaac Hoyle (Oakhill), Jack Walsh (St. Augustine’s), Max Lehmann (St. Augustine’s), James Sidery (St. Augustine’s), Harry Wilson (St. Augustine’s), Albert Hopoate (St. Augustine’s), Harry Hayward (St. Augustine’s). ISA II:  Cameron D’Costa (Oakhill), Alex Skinner (St. Patrick’s), Joel Thomas (St. Stanislaus’), Nathaniel Panozzo (St. Pius), Sam Eberle (Kinross Wolaroi), Sean Vaivelata (St. Augustine’s), Henry Whelan (St. Augustine’s), Sam Villata (St. Gregory’s), Sam Carfi (St.