In Khan's defense, Roach uses the example of his prized pupil, Manny Pacquiao. "The thing is, Manny Pacquiao got knocked out before he was world champion - twice," said Roach.

The plane was a Cessna 208B, and there were 15 people onboard at the time of the accident. AP said three people were being treated at Cooper University Hospital’s trauma center in Camden, New Jersey.