Frederick Roberts was a rugby union footballer who played for the New Zealand national team, commonly called the All Blacks. Playing at halfback, he played for the 1905 Original All Blacks, the first New Zealand representative team to tour the British Isles. He was the only halfback taken on the tour, and played in 28 of their 32 matches in the British Isles. New Zealand rugby historian Winston McCarthy wrote of Roberts that he was "a superb passer, a judicious runner from the scrum, and excellent two-foot kicker and a giant on defence." Roberts continued to be selected by the All Blacks until 1910, when he captained the New Zealand team on their tour of Australia.

The Original All Blacks were the first New Zealand national rugby union team to tour outside Australasia. They toured the British Isles, France and the United States of America during 1905–1906. Their opening game, on 16 September 1905, was against Devon whom they defeated 55–4. They defeated every English side that they faced, including a 16–3 victory over English county champions Durham, and a 32–0 victory over Blackheath. They defeated Scotland, Ireland, and England with the closest of the three matches their 12–7 victory over Scotland. The team's only loss of the tour was a 3–0 defeat by Wales at Cardiff Arms Park. A try claimed by winger Bob Deans was not awarded by the referee and later became a subject of controversy. However, Wales were generally considered the better team with the All Blacks playing particularly poorly in the first half of the game. They managed narrow wins against four Welsh club teams and went on to play France in France's first-ever test match. They returned to New Zealand via North America where they played two matches against Canadian teams. Overall they played a total of thirty-five matches, which included five Tests, and only lost once—the defeat by Wales.