The battle for supremacy at the top of men's tennis has rarely been more electrifying, but you wouldn't know it from the static offerings spit out by the ATP rankings computer each week.
While the rankings system is fair and rewards performance over a 12-month period, it does not always give an accurate reflection of current form. Changes at the top are few and far between, primarily because of the weight of points on offer at the Grand Slams.
Each Tuesday, starting this week, Yahoo! Sports will give our take on who is hot and who's not in power rankings aimed at providing a more up-to-date form guide on tennis' movers and shakers.
We will alternate between the ATP and WTA Tours. This week, we kick things off with a familiar name at the top of the men's pile.
Yahoo! Sports men's power rankings
1. Rafael Nadal: Dominant and destructive and operating at the peak of his powers.
2. Andy Murray: Putting together a superb year; cut down Federer at Indian Wells.
3. Roger Federer: Still looks awesome against everyone but Nadal and Murray.
4. Andy Roddick: Putting some useful points under his belt before clay-court season.
5. Fernando Verdasco: Physical warrior is now one of the toughest outs in the game.
6. Novak Djokovic: Looks off the pace physically and in danger of being left behind by the Big Three.
7. Jo-Wilfried Tsonga: Popular Frenchman has huge potential and keeps growing in confidence.
8. Tommy Robredo: E2 has already won two titles and climbed six official ranking spots this year.