Re: Davis Cup
We have to consider the doubles point more or less in the bag with Nestor on board. Their number 2 Endara would have to play the tennis of his life to win both his matches. Let's give him the benefit of the doubt though and assume he takes one match.
That would mean we need to beat their number one guy once. It depends on many factors, but Peter would be more than capable of doing so. Davis Cup has a weird way of bringing out the best in struggling players - look at what Chardy did recently for France.