^^no idea. Serbia hasn't played Canada or Italy before.
Well, here is the rule, but I still don't know what exactly this mean:
"27. CHOICE OF GROUND
a) Choice of ground shall be determined in the following sequence:
I. If one Nation has been entitled to choice for its Tie with another Nation in the 1970 Competition, or any later Competition, the latter shell have choice on the occasion of the next meeting with that Nation. If this is not applicable, then
II. Choice shall be decided by lot."