Now that Cris "Cyborg" Justino finally has another fight booked—against Megan Anderson July 29 at UFC 214—the longtime reigning world featherweight champion appears to be pulling out all the stops in her training.

That includes sparring with two-time Olympic boxing gold medalist Claressa Shields.



Cyborg has not lost since her MMA debut in May 2005. She holds a 17-1 record (one no-contest), most recently defeating Lina Lansberg at UFC Fight Night 95 in September 2016. Fifteen of her victories have come via knockout.