With the Williams sisters, Roger Federer and Andy Roddick stealing the headlines so far at the Sony Ericsson Open Miami, World No. 1 Novak Djokovic has been quietly going about his business in South Florida.

The Serb has yet to lose a set after a fourth round win yesterday over Richard Gasquet. And despite the pressures of having to defend points off his incredible 2011 start, Novak is in excellent spirits.

“I feel physically I’m fresh, fit,” Djokovic said. “Mentally I’m always there, you know. I always want to win every match that I play on.

“I’m waking up every morning knowing that I love this sport, and it’s something that gives me a lot of energy and drives me to practice hard and always seek to perfect my game as much as I can.”

Djokovic, who was just profiled in an excellent feature by American news magazine “60 Minutes”, has a day off today to recover before a quarterfinal showdown Thursday against David Ferrer.

Djokovic won the Miami title in 2007 and 2011, and was a finalist in 2009. Now can he make good on an even year?

Filed under: Miami
Tags: Novak Djokovic