I was at a 25K last year and didnt know what to expect when it came to ball kids and line judges. They only have 1 line judge for each line, so they had the side of the court they were on and also had to judge the line on the other side of the court
Wozniacki has magnificent shotmaking if you ask me, but it's not the power kind of one. She has to rely on all court tactics to make effective her sweet topspin mix, while still able to hit pretty decent winners when she feels them, especially with the backhand. Despite not making many winners, she's still an agressive baseliner, and she doesn't only win matches by waiting the opponent's mistake, though she can do that at times also.
Well, I don't know why she retired today. I watched the last 4 out of 5 games and she seemed fine physically. Irina played great tennis, maybe she knew Alex wasn't herself today and this worked for her confidence level. I know there were only 4 games and you cannot really judge correctly based on such an arbitrary sample, but she seemed to be back. As for Alex, it looks like her health problems still rule her career