I am glad I can help.
As an addition, you can search for the pranayama technique called ‘kapalbhati’. I think it can be very beneficial to athletes for the practice of control.
I would also recommend the ‘bedhana’ technique. ‘Chandra bedhana’ when aiming to calm the body & mind; ‘Surya bedhana’ if the goal is to awaken the body & mind and prepare for upcoming activity.