Juji
                                        
                                            
Jujimufu
Sergey Litvinov
Jujumufu (a.k.a
Jon Call
Joey Szatmary
                                        
                                            
Soviet
Juji
                                        
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Olympic training."I
                                        
                                            
Olympic
                                        
                                            
Olympic
                                        
                        
                        Alongside bodybuilder and strength coach Joey Szatmary, Juji takes on a workout devised by hammer thrower and three-time Olympic gold medalist Sergey Litvinov.The workout is a superset, performed a total of three times: 8 x front squat (405 pounds) followed by a 400-meter sprint which must be completed in 75 seconds.
As said here by https://www.menshealth.com/fitness/a36199189/bodybuilder-jujimufu-litvinov-workout-challenge-video/