one of the funny things about chapter 26 is that Kemari is NOT a competitive sport. The object is to use all the players to keep the ball in the air w/o using your hands or arms (kinda like football -- that's soccer for you 'murikkans).
Fun fact is that it's an insanely old sport dating back to the 7th century AD, Asuka era and the players usually wear clothing believed to be worn in that time period.