TOUCHING STORY: In recent days, on social media, an anonymous letter sent from a hospital has brought thousands of people to tears. The letter expressed gratitude to Indiana Fever player Sophie Cunningham, even though her name is not widely known. For the past five years, she has quietly carried out a journey filled with love: donating blood nearly 100 times to children with cancer. Carrying a rare blood type, she has helped build a future for those less fortunate…