here's my guess...

since we're getting so close to the famous "hill's" here's what i think's gonna happen: everybody knows that jaekyung's shoulder is a mess and he needs extra treatment before the match, so in order to prevent him from winning they will kidnap doctor dan and keep him locked until the match is over. since the doctor's not around jaekyung'll lose the match and be storming mad about it and he's gonna take it out on the doctor without knowing anything. i think (and hope so) this will be the last drop for the doctor and he'll leave him like shit and the actual story will begin. i don't care if my guess is right or not but i hope no matter what happens jaekyung'll suffer and bleed to hell ╥﹏╥ pls..