Ms Greville told the court that violence by Giggs was “not regular” and he would use aggression more as a form of control.
Fifa is poised to ratify an unprecedented change to the World Cup schedule less than three months before the tournament is due to start, with hosts Qatar having decided they want their national team to play the traditional opening fixture on November 20 rather than the following day as previously agreed.
Benjamin Mendy appeared in court on Wednesday to enter a not-guilty plea for an eighth rape charge.
Mike Tyson's daughter Milan is a budding tennis star.