Morteza N. answered 11/25/19
Hello my dear friend! I am very pleased to see someone to be a big fan for an Iranian sport team and would be very happy to help you learn the cheer phrase which comes as poem as follow:
ایران قهرمان میشه؛ خدا می دونه که حقشه… ●♪♫
به لطف یزدان و بچه ها؛ ایران قهرمان میشه… ●♪♫
Here is that might help you say it for non farsi speakers:
“Iran qahra(e)mān mishe; xodā meedoone ke haqshe”
“bah lataf yazdān o baččeha; Iran qahra(e)mān mishe”
If you have more question please let me know.