Complex sentence: Many consider Vassalo to be the best Ethiopian footballer in history, but some think he is qualified in actual Ethiopia after Mengistu Worku and Ydnekatchew Tessema because he is not fully Ethiopian.
Split into simpler sentences: Many consider Vassalo to be the best Ethiopian footballer in history. However some in actual Ethiopia valuate him to be listed after Mengistu Worku and Ydnekatchew Tessema, but this happens because he is not fully Ethiopian.