| Player | Previous Rank |
|---|
| 1. Roger Federer (SUI) | 1 |
| Sidelined with an illness last week. |
| 2. Andy Murray (GBR) | 2 |
| Still needs a major win. |
| 3. Novak Djokovic (SRB) | 3 |
| Just titled in Dubai, again. |
| 4. Rafael Nadal (ESP) | 4 |
| Still sidelined (knee). |
| 5. Juan Martin del Potro (ARG) | 5 |
| Hasn't played too much tennis so far in '10. |
| 6. Nikolay Davydenko (RUS) | 6 |
| Nursing a sore left wrist right now. |
| 7. Andy Roddick (USA) | 7 |
| A fixture inside the Top 10 (just not the Top 5). |
| 8. Marin Cilic (CRO) | NR |
| Croatian rocket on the rise. |
| 9. Robin Soderling (SWE) | 9 |
| A legitimate Top-10er? |
| 10. Fernando Verdasco (ESP) | 10 |
| Spain's No. 2. |
