After leaving international rugby he became a referee, officiating at Test level.
A fourth official was chosen from those referees not officiating a game at that time.
One referee officiates the match, without the help of sideline officials.
Their assignments over the weekend will mark the first time female referees have officiated in America's four major professional sports leagues.
Klein was the only referee officiating three matches during the World Cup 1978.
Their referees and judges officiate at title fights here.
A referee from both shows officiated the match.
He became a referee in retirement, officiating for the NHA thereafter.
It later emerged that the referee officiating the match had been paid a bribe totalling £27,000 by Anderlecht's chairman.
The referees officiate matches that range from local football to Premier League matches.
