Mahesh Bhupathi and Rohan Bopanna overcame a late resistance from Santiago Gonzalez and Christopher Kas to move to the quarterfinals of the ATP Madrid Masters.

The seventh seed Indian pair took one

Novak Djokovic scraped and slid to an opening victory at the Madrid Masters on Tuesday, then let loose with a blistering appraisal of the event's controversial blue clay courts.

"That was not tennis,