Tennis no Oujisama

Synopsis

During their match, in order to convince the latter to aim higher with his own style of tennis, Tezuka risks re-injuring his arm by going all out in the match, resulting in Ryoma's defeat. Oishi, who was the sole spectator of the Tezuka and Ryoma match, talks to Tezuka about the outcome and its repercussions. The next day at school, the other team members, grow suspicious when Tezuka and Ryoma fail to appear during team practice two days in a row. Meanwhile, Ryoma asks Nanjiro for a match, in which the latter realizes that Ryoma has changed and will now get stronger.

(Source: Wikipedia)