Duo face major tests against top two

Nikolay Davydenko and Novak Djokovic will have to produce career-best performances on Friday if they are to prevent it from being another Roger Federer-Rafael Nadal final at the French Open.

Federer and Nadal, the top two in the world by some distance, have dominated the men’s game for the past three years and are heavy favourites to meet each other again on Sunday in a repeat of last year’s Roland Garros showpiece.