Three-time Olympic hammer champion Anita Wlodarczyk injured herself when stopping a thief from stealing her car. “I single-handedly caught the thief and handed him over to the police. Unfortunately, I paid for it with a muscle injury,” the Pole wrote on Instagram. As a result, she will undergo surgery on Monday. The 36-year-old wants to win her fifth world title in Eugene, Oregon from July 15 to 24. Whether she will be fit remains to be seen. Wlodarczyk, who last year became the first woman in athletics to win three consecutive Olympic golds in one discipline, is considering switching sports w…