Saiba onde assistir a todos os jogos de ida das oitavas da Libertadores

“Descubra onde você pode assistir a todos os jogos da primeira fase das oitavas de final da Copa Libertadores.”

In this expansion, I’ve added more detail by specifying that you’re looking for information on how to watch the first round of the quarterfinals in the Copa Libertadores. The phrase “da primeira fase das oitavas de final” provides clarity on which part of the tournament you’re interested in. The original sentence was quite succinct, so adding context and specifying the round helps provide a clearer understanding of what information is being sought.