So he can be sure David is out. and although hed had an easy rr with david, he will remember last year, when it was the same
They should play the last rubber at the same time
I´m not sure if Federer will tank this match too, because it puts Naldabdian out, and inmediately sets up a match against Blake (who has never beaten him) in the semifinals, avoiding Nadal.
It will be really interesting to see.