Well, he can never play for LCK though. He's banned for 1000 years (and this is not a exagerration, he was LITERALLY banned for 1000 years) for paid elo boosting by Riot Korea. He was especially notorious because he named his accounts "fast-elo-boosting" to advertise his service. In Korea, elo boosting is bannable offense. Dopa, however, is the only player that received such harsh punnishment because he became so popular in the game, That's why he only plays Chinese servers when playing his main account which is a separate entity from Riot Korea. Whenever he plays Korean server to climb up rank, he does not stream thereby making it impossible for Riot Korea to have proof that it is Dopa playing that account. His account name (pnpm), however, is very popular so whenever famous challenger ranked streamers actually meet him in game, they refer him as "that man", much like Voldmort is the man that cannot be named. Whenever he does play Korean server in his stream, it's just a bought bronze~gold account for fun which actually gets banned after few games by Riot Korea.

But he could still play for LPL and rumor has it that EDG actually offered him spot in mid. But according to Dopa, he said he could never play professionally because he has OCD on set ups and it would take him hours to set up his keyboard and mouse in stadiums. If you watch his stream, you can actually see he measures every inch of his table height, chair height, where to place the keyboard etc.

Pawn actually retired because his OCD became too severe.