World Cup 2014: Howard Webb retained for last four games
Howard Webb could be in contention to referee the World Cup final after he was one of 15 officials retained by Fifa for the last four matches.
The 42-year-old from Yorkshire, whose assistants Mike Mullarkey and Darren Cann are also retained, has taken charge of two games at the tournament.
Webb officiated the 2010 World Cup final between Spain and Netherlands.
In that game, which Spain won 1-0, Webb made one of the most controversial decisions of his career by not sending off midfielder Nigel de Jong for a high-footed challenge. He has since admitted he should have shown the ex-Manchester City man a red card.
Brazilian Sandro Ricci is the only referee to be kept on from the four remaining countries - Argentina, Germany and Netherlands are the others - left in the tournament.
Mexican referee Marco Rodriguez has been assigned Brazil's semi-final against Germany on Tuesday.
Rodriguez was in charge of the group stage game between Uruguay and Italy, when Liverpool striker Luis Suarez bit Italian defender Giorgio Chiellini.
Meanwhile, Turkish referee Cuneyt Cakir will take charge of the second semi-final between the Netherlands and Argentina on Wednesday.