Novak Djokovic tamed world number one Rafa Nadal 6-3 6-3 to claim his fourth Sony Open title on Sunday, denying the Spaniard a maiden win on the Miami hardcourts.             

It was the second straight Masters series title for the second ranked Serb, who defeated Roger Federer in the BNP Paribas Open two weeks ago in Indian Wells.             

The Miami title continues to be one of the few to elude Nadal, who has now finished runner-up four times at Crandon Park, twice beaten in the final by Djokovic.             

The 40th meeting between Nadal and Djokovic added another line to what has grown into one of tennis's great rivalries with the Spaniard holding a 22-18 edge.

"Bad luck Rafa, it's always a challenge and always a pleasure to play against you"

Djokovic, who becomes only the second player after Federer to win back-to-back titles at Indian Wells and Miami on two separate occasions, said at his trophy presentation: "I played a great match from the start to the end, everything was working really well.

"Bad luck Rafa, it's always a challenge and always a pleasure to play against you and congratulations for a good week and good luck for the rest of the season."

He added on Sky Sports 3: "It feels great, I'm thrilled with my performance, it's been a fantastic day. I'm overwhelmed with the game I played.

"All in all it was an incredible tournament for me and the best performance at the right time."

Nadal said: "I want to congratulate Novak and his team, he did amazing with two great events in a row, winning in Indian Wells and now winning in Miami, that's very difficult to do, so just well done."