They also crushed Manchester City. Although they don't have the best players in the world right now, they are the team with the best harmony. They have a very high chance of becoming champions in the Premier League this year. They also gained a great advantage by winning all their matches in the Champions League.
Liverpool has a composition of players who understand each other including compatibility with the coach. So even though they don't have star players like other teams, Liverpool has advantages that other teams don't have namely togetherness, compactness, and solid teamwork that exceeds any team in Europe. That's why we really enjoy Liverpool playing on the field, able to conquer big teams like Man City and Real Madrid.