From my new favourite blog:
"Nico semble se relâcher au bout d'une heure de jeu... Recul stratégique ???"
"Nico seems to let up is effort. A strategical retreat???"
I think that's an interesting strategy.
Actually you have no idea how many players do that for real.. But I don't blame them, it's part of the strategical part of the game.
As mush as I love Djokovic who's one of my FA-VO-RITE players ever, that's what he did in the 2007 Estoril final against Gasquet. And it was a good move..