Complex sentence: In the past, only few Portuguese players were in other countries, but in the last two decades, this story started to change, and now numerous Portuguese footballers have spread around the world's top leagues, leaving the Portuguese mark in foreign football.
Split into simpler sentences: In the past, only few Portuguese players were in other countries. But, in the last two decades, this story started to change, and now numerous Portuguese footballers have spread around the world's top leagues, leaving the Portuguese mark in foreign football.