The Durban Bush Bucks player was close to signing for English side Newcastle United but for the intervention of his father, who wished him to continue his studies.
Mokone began his professional career in 1955 with English side Coventry City, where he made four league appearances, scoring one goal in the process.
[2] He later played in the Netherlands with Heracles Almelo, for whom he scored twice at his debut and won the 1958 Tweede Divisie title to become a club legend.
He later joined Cardiff City, making a goalscoring debut on the opening day of the 1959–60 season on 22 August 1959 during a 3–2 victory over Liverpool.
On 31 October 1978, Mokone pleaded guilty in Superior Court of Middlesex County New Jersey to the crime of atrocious assault for having personally attacked his wife with lye on 20 November 1977.
Mokone consistently denied his guilt and claimed that he had been specifically targeted due to his links to the left-wing, anti-apartheid ANC, who were considered a terrorist group by the CIA.
Tom Egbers, in investigating the case, noted the specific and suspicious interference of both the CIA and the FBI and the leading of witnesses by the police.