Bjorn Borg backs 'unbelievable' Novak Djokovic for more success and expects Rafael Nadal to continue
Bjorn Borg has predicted that Rafael Nadal will soon retire but believes that fellow veteran Novak Djokovic will win more Grand Slam singles titles. Following the retirement of Roger Federer and the surgeries undergone by Andy Murray, Nadal and Djokovic are the last two of tennis’ 'big four' to remain credible challengers for the Grand Slams on the men’s side of the sport. Ad Djokovic and Nadal are both battling against the passage of time as they look to add a few remaining titles to their CVs before they are forced to hang up their racquets.