He was educated at Wesley College where he played both rugby union and cricket. At the same time he played association football for Esker Celtic, a team whose former players also included Damian Duff. He also played gaelic football for Ballyboden St. Enda's and, together with Brian Stynes, he helped them win a Dublin under 21 Championship title in 1995. Miller eventually opted to concentrate on rugby union and spent the 1995–96 season playing for Old Wesley. He also represented Leinster for the first time at senior level. . Leicester Tigers
In 1996 Miller joined Leicester Tigers and went on to make 12 appearances for them in the Heineken Cup. His impressive performances for the Tigers saw him make his debut for Ireland and then represent the British and Irish Lions. While playing for the Tigers, he also attended both Loughborough University, where he studied for a degree in Physical Education at Sheffield Hallam University. Leinster
Miller first played for Leinster during the 1995–96 season while still attached to Old Wesley.
They were educated at Wesley College where they played both rugby union and cricket. At the same time they played association football for Esker Celtic, a team whose former players also included Damian Duff. They also played gaelic football for Ballyboden St. Enda's and, together with Brian Stynes, they helped them win a Dublin under 21 Championship title in 1995. Miller eventually opted to concentrate on rugby union and spent the 1995–96 season playing for Old Wesley. They also represented Leinster for the first time at senior level. . Leicester Tigers
In 1996 Miller joined Leicester Tigers and went on to make 12 appearances for them in the Heineken Cup. Their impressive performances for the Tigers saw them make their debut for Ireland and then represent the British and Irish Lions. While playing for the Tigers, they also attended both Loughborough University, where they studied for a degree in Physical Education at Sheffield Hallam University. Leinster
Miller first played for Leinster during the 1995–96 season while still attached to Old Wesley.