Golf: The Open - 2010 - Day 4 - Part 1

Hazel Irvine introduces coverage as the final round of the Open Championship begins at St Andrews. It is 150 years since the first Open Championship took place at Prestwick, with Willie Park Senior the first man to win the title. Who from the chasing pack of the 2010 class will put themselves in among the genuine challengers as the four-day competition builds to a conclusion?