The complete roster of the teams participating in the second half of the 2017 LCK Spring Split has been announced. These rosters will be effective as of the second match on March 2nd, and the order of the players is based on their Korean alphabetical order.

Compared to the first half, three teams went through changes in their player roster, while Longzhu Gaming has a new coach, Seungmin Choi, on board.

- Jin Air Green Wings: Jihwan "Raise" Oh (Changes position from Support to Jungler)

- ROX Tigers: Minsoo "MightyBear" Kim (A new Jungler, previously in Vitality)

- Kongdoo Monster: Kisun "Secret" Park (A new Support, previously in SBENU Sonicboom)

The season will resume on February 28th (KST) with the match between MVP and Longzhu Gaming.