I always seem to be in a hurry to dismiss Agnieszka Radwanska as a true top-five player on the WTA tour, but I may have to reconsider since it doesn't appear as though the current world-No. 3 star is going away anytime soon.
The great rivalry between world No. 1 Rafael Nadal and former top-ranked superstar Roger Federer will resume on Saturday, when the two tennis icons meet in a semifinal at the $4.202 million Madrid Masters.
The top left-handers in women's tennis will square off in a final on Saturday, as fifth-seeded Angelique Kerber and seventh seed Petra Kvitova will decide the 2013 champion at the $2.37 million Pan Pacific Open tennis event.
Top seeds Novak Djokovic and Rafael Nadal moved into the quarterfinals, while former world No. 1 great Roger Federer suffered a third-round upset Thursday at the $3.85 million Shanghai Masters tennis event.