Riot Games have listed Lee "Easyhoon" Ji-hoon as the starting mid lane player for SK Telecom T1 in their match against Origen this weekend.
Easyhoon has only played twice at this year's Worlds, playing Twisted Fate in a Group Stage win against the Bangkok Titans (3/0/9 KDA), and Karthus against H2K (4/3/10 KDA).
SK Telecom T1 have not lost a game so far at Worlds, going 6-0 in the group stage and defeating ahq e-Sports Club 3-0 in the quarterfinals. They face Origen, who finished second in their group with a 4-2 record and come into the semifinal after defeating the Flash Wolves 3-1.
The match, due to start at 10:30 a.m. EST on October 24, will be the first of the two Europe/Korea semifinals at the 2015 World Championships. Fnatic will face the KOO Tigers in the other matchup on October 25.
Matt Demers is a Supervising Editor for theScore eSports. You can follow him on Twitter.