In his professional club rugby career he has played for: the Natal Sharks, Durban, Free State Cheetahs, Central Cheetahs, Bloemfontein, Leinster and the Stormers. He has also played invitational rugby for the Barbarians.
Ollie le Roux made his international debut for the Springboks against England in 1994 and won 54 Springbok caps. He holds the record as the youngest Prop forward to ever play for South Africa.
Ollie became a crowd favourite on joining Leinster. He was part of their Magners League success in 2008. Despite Le Roux's large size – 6' (1.8m) and 136 kilograms (or 21 st 7 lbs/ 301 lbs) his work rate around the field is top drawer.