Tomori got injured seriously for the first time in December 2015 at the World Championship during the match against Poland. The diagnosis was anterior cruciate ligament tear and a partial lateral ligament injury. She was out for eight months and returned to handball in autumn 2016. During a training in October she felt that her operated knee hurts, the doctors after an examination decided that one more surgery is needed. Tomori recovered from this surgery for January 2017. After the 2016–17 season another operation was needed, because of a cyst that has emerged at the location of the screw exception. She recovered in time and was able to start the preparations with her team, Győri ETO. In October 2017 during a 2018 EURO qualification match against Belarus she has suffered a knee cartilage injury, which required an arthroscopic procedure. Her recovery was successful, she could return to the court in January 2018. In March 2018, during a match against The Netherlands she twisted her other, "healthy" knee unluckily and suffered a rupture in her anterior cruciate ligament. Later she admitted, that after this injury she was thinking about retirement, but other athletes – like Anita Görbicz – convinced her, that she can still play on the highest level, even if both knees have been seriously injured before. She made her comeback in January 2019, after 9 months of successful rehabilitation.