Only a medical examination and the finalisation of personal terms still required before it can be officially confirmed.
Rapoo, a 20-year-old left wing-back, is widely regarded as one of South Africa's most promising young footballers.
Comfortable in both defensive roles and more advanced wide positions, he offers considerable tactical flexibility on the flank, a quality that has made him highly sought after.
His development began at SuperSport United, where he first broke into senior football at the age of 16.
At international youth level, he captained the South Africa U20 national team to success at the Africa Cup of Nations U-20 and also featured at the FIFA U-20 World Cup in Chile, underlining his pedigree on the global stage.
The youngster had previously attracted interest from major clubs, including Al Ahly SC and Kaizer Chiefs, but Orlando Pirates moved swiftly to secure his signature, reflecting their long-standing admiration for his progress.
Within the Pirates squad, he is expected to provide direct competition for established options such as Deon Hotto and Nkosikhona Ndaba.
