As the Champions League reaches its crucial stages, find out who is involved, when the semi-finals are happening and how to watch.

Following the conclusion of the UEFA Champions League quarterfinals, only four teams remain in the hunt for European glory.

A few years ago, when Liverpool won the Champions League, Jurgen Klopp’s side could look to full-backs Trent Alexander-Arnold and Andy Robertson with confidence that they would produce match-winning performances. Goals, assists, and corners taken quickly. To possess the two best full-backs in the world was a game-changer.