I know a lot of people seeing Murray in 3 sets. Yes Isner was broken 5 times against Simon yesteday and Isner may be a bit tired. The thing that I like about this is that even though Murray is playing great, I feel like he doesn't always have a spectacular match and think he drops a set. If one set is dropped by Murray, I see this going around 40ish games.
I could be wrong, but I say at least 4 sets played.
Thoughts??