A lot of credit going to Kim, but this was a straight chokejob by Li Na unfortunately. That was a terrible decision and a poor drop shot and Li had all the time in the world to put it away yet she took everything off of it and lightly hit it to Kim.
Then Li spotted her 4 straight games to start the set. Now this happens all the time, but I'd say this was Li losing and not a case of Kim winning. Not that it matters to the Kim backers haha.