What Does It Mean When We Say That Globalization in the Sports

What does it mean when we say that globalization in the sports labour market is mostly a "one-way street"?

A) That we see mostly players from rich countries taking the roles of players from poorer countries because they have had more opportunities to develop their skills.
B) That players have no say in how their team is run or how games are played in terms of strategy.
C) That players from poorer countries migrate to those countries where salaries are the highest.
D) That owners have complete control over players' lives and sports play.