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.

The world No. 1 leads the British Open by four shots and the SI Golf team debates whether the world No. 2 is the man to possibly run him down.

Roar, Rory, roar! Except the problem for the magnificent McIlroy masses here at the 153rd Open is that it does not seem to matter how loudly they cheer and shout and urge on their home hero.