German tennis player Eva Lys said on Saturday that she is suffering from a rheumatic autoimmune disease which has made her miss tournaments on short notice. World number 146 Lys said on Instagram she decided to go public because “in recent months, I have been receiving an increasing number of messages about my physical condition, since I have had to skip a tournament or two. “In 2020, I was diagnosed with a rheumatic autoimmune disease (Spondylarthritis). This has been a physical challenge that I face every day alongside the demands of my sport. “Thanks to the fantastic support and treatment f…