He suffered leg injuries in the 2001 and 2002 seasons, but returned in late 2002 as part of the gold-medal-winning American 4 x 100 m relay team at the IAAF World Cup, breaking the championship record.

[3] The following year he missed much of the indoor track season due to hamstring problems, which were a knock-on effect of his previous injury.

[1] Upon his return in 2002 he won medals at a number of track meets in both the 100 and 200 m, including a personal best-equalling win of 9.98 seconds in the 100 m at Gresham.

However, Tim Montgomery and Dwain Chambers who finished first and second later tested positive for banned substances and Miller was upgraded to sixth place.

[4] Forming an American team with Jon Drummond, Jason Smoots and Kaaron Conwright for the 2002 IAAF World Cup, Miller anchored the US to victory, setting a championship record of 37.95 seconds.

The following year he failed to repeat this form, scraping Track and Field News' top ten US sprinters list.