So...after following most of the match via scores online, I have to say that Murray is not the only roller-coaster operator right now.
Serena was up 6'3 4'1 and all of a sudden just sputtered...next thing I know the score is 6'3 5'5... with Serena being broken twice in a row!

They get to a tie where she finally wins it 6'3 7
(7)'6
(5).
I hope her next match isn't tomorrow (I'm not sure how they do it in Cinci). We both need to catch our breaths!