The other three players are striker Thabiso Kutumela, defender Brian Onyango and midfielder Bongani Zungu.
The latter player had already announced his departure from the seven-time back-to-back DStv Premiership winners.
Sirino and Kutumela have been reported to be unhappy campers at the Chloorkop-based club due to limited game time.
During his time with Sundowns, Sirino missed out on opportunities to join Al Ahly, who were interested in him when coach Pitso Mosimane oversaw the Egyptian giants.
Kutumela, who joined Masandawana in 2021 as a Bafana Bafana player, spent last season on-loan at Cape Town City.
After the big move from Maritzburg United, Kutumela’s career took a big nosedive as he dropped from the national team.
Kenyan defender Onyango, also a former Maritzburg player, joined in 2020 and leaves Sundowns having won three league titles and others trophies.
