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Cat Thisius

Cat Thisius, who plays on the MedCity Mafia roller derby team and is recovering from surgery to treat her breast cancer earlier this year, works with assistant sports performance coach Becky Salfai Wednesday morning, May 16, 2018, at Olmsted Medical Center Sports Medicine and Athletic Performance in Rochester. Salfai, who has been the lead strength and conditioning coach for the Med City Mafia roller derby team since October of 2017, said Thisius' workouts haven't changed a whole lot from before her surgery because she was in such good shape, and that the workouts have just adapted because of restrictions from Thisius' physical therapist.