He lost both arms in an electrocution accident at age 9 when his kite got caught in electrical wires.

The South African organisation Children of Fire assisted with Radebe's rehabilitation after he was injured.

[1] Radebe failed to qualify for the 2008 Beijing Games and experienced lower performance levels until 2010 due to shin splints.

In 2010 he won the silver medal in the T46 100m race at the Commonwealth Games in Delhi, India, and in 2011 gold as part of the 4 × 100 m relay team in the 2011 IPC World Championships.

In the 2012 Paralympic Games, Radebe won a gold medal as part of the South African 4 × 100 m relay team in a world record time of 41.78 seconds.