I don't know why Del Potro is drifting... is it beacuse of his knee injury? Even money or Del Potro small favorite is more correct in my world. Should be a very entertaining match to trade.
In the all polish affair between Kubot and Janowicz. I think Janowicz's odds is low. I think 1.50-1.60 would be more viable odds.
Stay Sharp! /Sammy