Ryu vs Hayate
Ryu is in Germany, along with Ken, who is defending his Pan-American championship in a Karate Tournament in Frankfurt. Ryu isn't fighting in this tournament (surprizingly!).
However, Ein, or rather Hayate, is there acting as support for Hitomi. The Mugen Tenshin ninja/karate expert remembers Ryu from several years earlier when both Ryu and Gouken were training near his home village.
Dressed in a white karate gi, Hayate challenges Ryu to a match. Ryu accepts.
This is strictly a karate match. Ryu's projectile attacks are banned. Hayate is not fighting with his ninjitsu style or his ninpo tricks. STRAIGHT KARATE.