In round 8 of the 2021 NRL season, Collins was taken from the field in the Sydney Roosters 38-4 victory over Newcastle with a suspected ACL injury.

[13] Collins made 16 appearances for the Sydney Roosters in the 2022 NRL season as the club finished sixth on the table.

[14] In October, he was named in the Australia squad for the 2021 Rugby League World Cup[15] and played three games during the tournament.

[16] Collins played 25 matches for the Sydney Roosters in the 2023 NRL season as the club finished 7th on the table and qualified for the finals.

[18] Collins was selected in the Australian side for the 2023 Pacific Championships, and scored his first career double in the Kangaroos' win over New Zealand on 28 October.