Yuvraj Singh in a recent Facebook post acknowledged his mother Shabnam Singh for being by her side all along his fight with cancer. [related-post] "I was very sad, sad that I had to go through such things. But my mother was there and her presence made it a bit easier." wrote Yuvraj. Yuvraj was diagnosed with Lung cancer after the World cup 2011 and had to shift to America for treatment. The left-handed batsman, who was the man of tournament in World Cup 2011, had to undergo chemotherapy.