Cricket Player Reveals Lifelong Secret Illness

• Khawaja kept his rheumatoid arthritis secret for his entire Test career.
• He feared others would use the illness against him in his career.
• Khawaja released his autobiography, 'Sabr', on 10 November.
• He revealed the illness in an interview coinciding with the book release.
• Khawaja played through pain, establishing himself as a Test cricketer.