Former umpire Rudi Koertzen dies at the age of 73
Former South African umpire Rudi Koertzen killed in car crash : The Tribune India
Rudi Koertzen: The Umpire Who Stood Through The Test Of Time
Former international umpire Rudi Koertzen dies, aged 73
South African umpire Rudi Koertzen dies in accident, Cricket News
Reactions to umpiring legend Rudi Koertzen tragically passing away - CricBlog
Former Elite Umpire who was involved in a car crash..?
Former South African Test umpire Rudi Koertzen dies in accident
Cricket umpires remember the late Koertzen as an iconic, no-nonsense person - Sentinelassam
Former South African umpire Rudi Koertzen dies in car crash at 73