Riot Games's law stipulates that each team has 5 official players and 1-2 reserve players. However, with the team that has played stably together for 3 years, T1 does not need to change much in the squad. However, according to Riot's law, the teams were required to have a reserve, so T1 chose the assistant coach Sky to take this role.

By 2024, Sky was no longer in the team components and T1 did not reserve during the season. However, just 1 week before the tournament, T1 surprised when choosing Rekkkles, the current support of T1 Academy to play a substitute.
This information was also confirmed by Riot Games when Rekkles appeared in the Pick'em prediction section of Worlds 2024. Previously, the former Caster and Content Creator of LCS, Montecristo, revealed the list that was closed from August 16, when the LCK play-off round has not happened.
Rekkles is the legendary gunner of LEC (LCS EU formerly), who has achieved the best achievement of the Runner -up of Worlds 2018. However, by 2024, this player has moved to T1 Academy to play with the support role, although the team does not achieve good results in both Challengers seasons. Although the ability to not play, Rekkles will still be a good addition to the T1 squad with seasoned international competition experience.