Volleyball injuries

The majority of sprained ankles in volleyball occur when a player is at the net, either blocking or spiking.

[3] The reason why ankle sprains occur at the net is because both blocking and spiking involve jumping and possibly of landing on an opponent's foot causing the injury.

[4] One possible situation that can cause a player to sprain their ankle is when the ball is set too tight or close to the net.

[6] The alternative spiking method is said to be a possible prevention to some injuries that occur in the shoulder and also enhance an athlete's performance.

[4] Jumper's knee is defined as a syndrome of tendon pain, localized tenderness and that is detrimental to an athlete's performance.

[7] As the etiology and pathology of jumper's knee is not known the treatment varies and is largely based on a trial and error basis.

[9] Treatment for these injuries includes physical therapy, strength training, and occasionally surgery or a brace.

A volleyball match between Poland and Argentina
Three teammates who are attempting to block a ball have a greater risk of landing on each other's feet and spraining their ankle.
Spiking in volleyball places the shoulder under stress and can result in injury to the shoulder.
Both blocking and spiking involve jumping and have the possibility to cause jumper's knee.