The Open Championship isn't over. McIlroy and everyone else in contention have to believe they have a chance. But they're chasing a guy who's almost impossible to catch.

Scottie Scheffler is four strokes clear ahead of the final round, on 14-under par after 54 holes. The world number one has won the past nine events in which he has held a 54-hole lead

Scottie Scheffler is one round away from adding a fourth major championship to his resume, which already includes being on track to be the top player in the world at the end of the season for three consecutive years.