Jansen made his test debut for the Springboks in 1970 against New Zealand at Loftus Versfeld in Pretoria and played in all four tests during the series against the touring All Blacks.[2] Jansen also gained fame in his first Test for his excellent tackle on All Black flyhalf Wayne Cottrell, that helped swing the momentum of the game in favour of the Springboks.[3] In 1971 he played in the test series against France and Australia. His last test match was the losing test against England in 1972.[2] He played in a further five tour matches, scoring five tries to add to his one test try for the Springboks.[4]
^ abJooste, Graham K. (1995). South African rugby test players 1949-1995. Johannesburg: Penguin. pp. 79–84. ISBN0140250174. OCLC36916860.
^Greyvenstein, Chris (1992). Springbok saga : from 1891 to the new beginning (4th ed.). Cape Town: Don Nelson. p. 256. ISBN1-86806-095-0. OCLC105375255.
^Colquhoun, Andy (1999). The South African Rugby Annual 1999. Cape Town: MWP Media Sport. p. 148. ISBN0958423148.