Mark signs on for Davis Cup

The Australian press reports that Mark has signed on for the Australia-India Davis Cup match in Australia Sept 20-22nd provided that he is fit and without problem following the US Open (post-Open is when Mark has another round of knee shots scheduled). Two articles added. On other news, I haven’t been able to find anything that mentions why Mark is not at the ATP Masters event in Toronto this week. It’s an event he’s done before and there’s no word about injury or withdrawal, so it’s a bit of a mystery.