The beginning of each UEFA Champions League season restores the true rhythm of a European campaign, in which the continent's top teams mix in competition against each other and undergo new litmus tests as they aim to answer one question: Does their ambition match the ability to pull off their goals?

Liverpool beat AC Milan 3-1 in the Champions League, but Christian Pulisic continued his hot start to his second season in Italy.

The United States player pool has never been more prominent in Europe’s top soccer leagues and two of its key players have scored on the opening night of the continent’s top competition.