U.S. players, from left, Micah Christenson, Maxwell Holt and Thomas Jaeschke jump to block a ball spiked by Serbia during a Volleyball World League semifinal match at the Maracanazinho gymnasium in Rio
Selected Kinematic Characteristics Analysis of Knee and Ankle Joints During Block Jump Among Elite Junior Volleyball Players - Physical Treatments - Specific Physical Therapy Journal
Staying square to the volleyball net while blocking: Five steps - USA Volleyball
Six Steps To Dominate In Volleyball With Incredible Blocking – Better At Volleyball
Middle training: Jump blocking - The Art of Coaching Volleyball