India skipper Mahendra Singh Dhoni, on Sunday, said that he was unaware about the extent of Yuvraj Singh's illness, when asked by the mediapersons at the post-match media conference.
Yuvraj has been diagnosed with cancer and is undergoing chemotherapy in the United States.
"I don't know about his illness because I haven't been in touch. He is a pleasure to have in the side. He is one among a few players who has been good at number six and then climbed to do well at number four.
"He is someone who could change the momentum of the game. He could block and also take aggressive option. Then not to forget his bowling. People call him pie-chucker but he is very effective," Dhoni said.
The 30-year-old left-hander has been in the US since last month being treated for what was earlier claimed to be a non-malignant tumour, by his family.
But it has now been diagnosed as malignant and Yuvraj is currently undergoing chemotherapy in the Cancer Research Institute in Boston, his physiotherapist Dr Jatin Chaudhary said.