Rafael Nadal: Novak Djokovic makes bold Barcelona Open claim
Novak Djokovic believes Rafael Nadal is the man to beat in Barcelona
The Spaniard has returned to the top of the world rankings in recent weeks after Roger Federer's shock slip up in Miami.
Nadal himself has been out injured recently.
But the 31-year-old proved he is back to his best by winning the Monte Carlo Masters on Sunday.
Djokovic, meanwhile, has struggled since his return from injury.
The Serb has failed to overcome a persistent elbow problem recently, crashing out of three tournaments in the early stages.
And despite feeling he is nearing his best once again, Djokovic is wary of coming up against Nadal in Barcelona this week.