The sender may receive a bow? If the sender informing the organisers through many physical capability until the cause could not pass by, the rules let organisers know before every race.
The sender may receive some deference. If a man let the judge know the physical disability. Causing the unable to send the ball by the rules. We need to let the judge know, before every match.
The sender may be allowed If the sender is informed the referee the lower physical capacity Until the cause could not send their children according to rules The need to inform the referee know before the match every time