Mario Ancic is a good single player. We know that. He is top10 player in the world.
But, he has got just 2 single titles, and 4 doubles titles. He has won 2 double titles two weeks in a row partnering Indian Mahesh Bhupathi. Should he play doubles more often and win titles or should he play singles only?
It's obvious that he is tired. He lost in quarters of Mumbai, probably 'cause he was tired. My opinion is that he should play singles, and doubles maybe few times in a year. It doesn't bring much to him, and it makes him be tired.