Yeon and CoreJJ Reportedly Set to Join Cloud9 for LCS 2027

Sean “Yeon” Sung and Jo “CoreJJ” Yong-in are reportedly set to leave Team Liquid and join Cloud9 for the 2027 LCS season, according to two reports published by Sheep Esports on Thursday, November 12. The duo have played together in the League of Legends bot lane since 2023 and could continue their partnership under a new organization. Neither transfer has been officially announced.

The potential signings would be part of Cloud9's roster rebuild ahead of LCS 2027, following a titleless season and an early exit from the Worlds 2026 Play-In Stage. If both moves go through, Yeon and CoreJJ are expected to replace Tactical and Vulcan, respectively.

Yeon Has Been With Team Liquid Since 2020

Yeon began his competitive career with 100 Thieves Next, an amateur team he represented in several tournaments throughout 2020. After participating in that year's LCS Scouting Grounds, he joined Team Liquid Academy in December and remained on the developmental roster until the end of 2022.

He was promoted to Liquid's main roster ahead of the 2023 season. Since then, Yeon has spent four consecutive LCS seasons as the team's starting ADC, playing alongside CoreJJ throughout that period.

One of the duo's biggest achievements came in Spring 2024, when Liquid defeated FlyQuest 3-1 in the final to claim the LCS title. The organization returned to the championship final later that year but finished as runner-up.

In 2026, Liquid reached both LCS finals once again. The team suffered a 3-0 defeat to LYON in Spring before getting its revenge in Summer, winning the final 3-1.

That victory secured Liquid the LCS' first seed at Worlds 2026. However, the team's international campaign ended in the Swiss Stage. Liquid was eliminated after a 2-1 loss to LOS, finishing the tournament with one series win and three losses.

CoreJJ Is a World Champion Who Joined Liquid in 2018

CoreJJ has a much longer competitive history. The South Korean player began his career as an ADC, spending time with Dignitas before joining Samsung Galaxy, where he transitioned to the support role.

With Samsung Galaxy, CoreJJ reached the 2016 World Championship final before winning Worlds 2017, defeating SK Telecom T1 3-0 in the championship match. He remained with the roster during its transition to Gen.G in 2018 before joining Team Liquid that November.

After moving to North America, CoreJJ won both the LCS Spring and Summer titles in 2019. That same year, Liquid reached the MSI final, where the team finished second after losing to G2 Esports. The support was also named LCS MVP in Spring 2019 and Summer 2020.

CoreJJ went on to win the 2021 and 2022 Lock-In tournaments and added more trophies to his collection in the following years. His more recent achievements include the 2024 LCS Spring title, an LTA championship in 2025, and the 2026 LCS Summer title alongside Yeon.

According to Sheep Esports, LYON also showed interest in signing CoreJJ for 2027, but the support is reportedly expected to choose Cloud9 instead. The move would bring his eight-year tenure with Team Liquid to an end, having represented the organization since late 2018.

Yeon and CoreJJ Could Replace Tactical and Vulcan

The duo's potential arrival would also mean changes to Cloud9's current bot lane. The organization had already given Edward “Tactical” Ra permission to explore his options ahead of 2027, despite his contract running through November 2028. According to Sheep Esports, Shopify Rebellion is among the teams interested in signing the ADC.

At support, CoreJJ would take the place of Philippe “Vulcan” Laflamme, who has also attracted interest from Shopify Rebellion, according to the same outlet. Vulcan remains under contract with Cloud9 through 2029, meaning any departure would still require an agreement between the organizations.

Alongside the potential signings of Yeon and CoreJJ, Robert “Blaber” Huang and Lee “Loki” Sang-min are also part of Cloud9's plans for next season, according to Sheep Esports.

Cloud9 Ended 2026 Without a Title and Exited Worlds in Play-In

The potential rebuild follows another trophyless season for Cloud9, which has not won an LCS title since Spring 2023.

Cloud9 began 2026 with two runner-up finishes. The team lost the LCS Lock-In final 3-1 to LYON before falling 3-0 to FURIA in the Americas Cup final one week later.

In the LCS Spring and Summer Splits, Cloud9 finished third on both occasions. Team Liquid eliminated C9 in Spring and defeated them again in the Summer upper bracket final before LYON ended Cloud9's playoff run in the lower bracket.

The third-place finish in Summer earned Cloud9 a spot at Worlds 2026, ending a two-year absence from the World Championship.

However, Cloud9 failed to make it out of the Play-In Stage. The team opened with a 3-2 loss to Karmine Corp, dropping into the lower bracket. C9 was then eliminated by FURIA, which won the series 3-1.

If both reported signings go through, Cloud9 will retain an established bot lane pairing with four seasons of LCS experience together. The organization has yet to officially announce any changes to its bot lane for 2027.

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Featured image credit: Team Liquid

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