Kaoru's Troubles
During their new training regimen, Kaido and Oishi are forced to drink Inui's special vegetable juice for losing in their training match, becoming very sick. Then, when Tezuka accidentally drinks all of Inui's juice, Inui is forced to use his "Golden Power Remix Inui Juice" on the loser of the Kikumaru and Ryoma match. When Ryoma fails to win the game within five shots, which was the requirement for him to win, he ends being the one to drink it.
Aired 13/03/2002EP 22 - Kaoru's Troubles
The Prince of Tennis
Echizen Ryoma is a young tennis prodigy who has won 4 consecutive tennis championships but who constantly lies in the shadow of his father, a former pro tennis player. He joins the Seishun Gakuen junior highschool, one of the best tennis schools in Japan, and there along with his teamates he learns to find his own type of tennis in an attempt to defeat his biggest obstacle of all: his father as well as himself.
(Source: Anime News Network)