sahilnatu
Club Captain
Considering your player could play for any country, I would imagine there would be a few fixtures you would be involved in different to other countries? Psuedo-Ashes series if you played for Australia/England maybe? I don't know though...
May be that's where the "rivalries" come in. You'd play England more, as an Australian. The subcontinent teams would play against each other pretty often.
A pseudo-Ashes, or even the Asia Cup, CT, (the 2017 Test Championship may be) would be a great addition.