Mahesh Bhupathi [Images] and Mark Knowles came up short in the Monte Carlo Masters final on Sunday.

Bhupathi/Knowles in final

The Indo-Bahaman combination lost 3-6, 3-6 to the Spanish combine of Rafael Nadal [Images] and Tommy Robredo in the decider.

For Bhupathi and his partner, it was a second straight reverse in a final after the loss at Miami [Images] last month. The duo however, had won back-to-back titles in Memphis and Dubai earlier in the year.

Images: Bhupathi's 500th match win

The win completed a double for Nadal, who had earlier in the day put out Switzerland [Images] Roger Federer [Images] 7-5, 7-5 to win the singles title for a fourth successive year, a feat last attained by New Zealand's [Images] Anthony Wilding in 1914.

Nadal and Robredo had menawhile put out the eighth-seeded duo of Jonas Bjorkman and Kevin Ullyet in the last four.