January 09, 2018
What is the most possible times can one player from top leagues play against the same another one as an opponent in official matches per year?
1. Both of the 2 players are from a top league of a nation(or a region).
2. Official matches can refer to clubs and nations.
3. Suppose that two nations(or regions) can play only one friendly match per year. Two clubs can play only one commercial friendly match per year.
4. Separations of nations or establishments of football association of a new nation are excluded.
What is your answer?