A former Seigaku tennis player makes a surprise appearance while Ryoma is training, inviting him to witness his match against Tezuka.  And before the end of the match, Tezuka’s secret will have been revealed and a life altering decision made.
It's an illusion.
La bola que estás persiguiendo 
es una ilusión.
Es todo una ilusión, tanto la pelota
É uma ilusão.