[9] While playing for Melbourne Storm National Youth Competition, he also made appearances for Sunshine Coast Falcons in the Queensland Instrust Super Cup.

[14] In Round 25 he made his second NRL appearance, coming off the bench in Melbourne's 24–16 win over North Queensland.

[18] After the NRL initially rejected the arrangement, Grant requested an immediate release from his Melbourne contract in the hopes of joining the Wests Tigers as soon as possible though this did not eventuate.

[19] There were further delays due to injury to Brandon Smith causing Melbourne to hold up proceedings so they could have Grant provide back up to Cameron Smith in the early rounds of the season,[20] and briefly by Momirovski wishing to sign a new contract with Wests Tigers prior to leaving,[21] but the deal was finally made official during round 2 of the season on March 21, 2020.

[22] Grant played a total of 15 games for Melbourne in the 2021 NRL season as the club won 19 matches in a row and claimed the Minor Premiership.

[24] Grant played for Australia in their 2021 Rugby League World Cup final victory over Samoa.

[26] In the opening game of the 2023 NRL season against the Parramatta Eels, Grant scored the first golden point try in Melbourne Storm history.

[29] Grant played a total of 23 matches for Melbourne in the 2024 NRL season as the club were runaway minor premiers.