Feeling that Ryoma's tennis is a simple copy of his father's, Tezuka asks coach Ryuzaki for permission to play an unofficial match against Ryoma. Before his match, Tezuka and Oishi go to a clinic to check whether or not Tezuka's arm has healed. Though it is healed, the doctor warns him not to play long matches and to not use his drop shot. After finding out he is fine, he meets up with Ryoma. Suspicious of the two's meeting, Oishi decides to follow the pair to see what is really going on. (thetvdb.com)