Roger Federer of Switzerland maintained a healthy lead despite an early exit at the Indian Wells Masters in the men's tennis rankings issued Monday by the Association of Tennis Professionals (ATP).

Federer, who was upset by Marcos Baghdatis of Cyprus in the third round of the Californian event last week on his return from a lung infection, tops the bill with 11,035 points from Serb Novak Djokovic (8,220) and Scotsman Andy Murray (6,835).