I don’t believe he has worked with any directly, but has had communication with sport performance coaches for football in the U.S. After reading through Dr. V’s website and reading through his translated writings, Dr. V looks at the biomechanical movement of the sport along with the bioenergetics and based off of this, designs programs specific to both the movement and energy requirements. For most of the sports I’ve seen him write, both on his site and the Coaches Manual, the Back Squat, Calf Raises, and Jump Squats seem to be universal, because they are all hip extension movements which makes up most if not all movement in sport. The rep scheme, rest periods, and weight % used (from my understanding) are what is used to mimic the energy system requirements for that sport.