The move to Oxford represented this whole-hearted player's first foray into English football after he had spent is career at two Scottish clubs.
The 24-year-old right-back first made his reputation as a determined and aggressive defender at Stranraer, before moving on to Ayr United in 1997 and establishing himself as a first-team regular.
Robertson's ability to augment the attack with his bustling overlaps provided another reason for former Oxford manager Denis Smith to snap the player up in the close season of 2000.
Soon established himself as a regular in a struggling Oxford side after making his debut in a 1-0 home defeat at the hands of Peterborough United.