Jo Yong-in (Korean: 조용인), better known as CoreJJ, is a South Korean League of Legends player who is the support for Team Liquid of the League of Legends Championship of The Americas (LTA).

[1][2] He won the 2017 World Championship with Samsung Galaxy.

He was named MVP of the 2020 LCS Summer Split.

[1][3] He received his green card in February 2022.

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