Describing Yuvraj Singh as a "fighter", Indian tennis ace Mahesh Bhupathi Wednesday exuded confidence the cricketer will win his battle against lung cancer.

"It's a disturbing news. But we all know what kind of fighter Yuvraj is. One of the most important aspect to fight this disease is to be mentally strong.

"We are praying for him. We are confident he will win," said Bhupathi, on the sidelines of a programme here.

Yuvraj is now undergoing chemotherapy in the US for a malignant tumour in his lung.