This is the 5513th most frequent Korean word.
메시를
"메시를" is a grammatical form indicating the object "Messi" (the soccer player) in a sentence, marked with the object particle "를" in Korean.
The word '메시를' is used here as a direct object to indicate the person observed, Lionel Messi, in the sentence.
나는 메시를 축구장에서 보았다.
I saw Messi on the soccer field.
In this case, '메시를' is the direct object being recognized as the best player in the opinion of people.
사람들은 메시를 최고의 선수로 생각한다.
People consider Messi the best player.
Here, '메시를' is again the direct object, this time indicating the person whom 'we' like.