The Uefa Champions League went down last night between Atletico Madrid and Liverpool.
Saul Niguez’s early goal inflicted made the game become Liverpool’s second defeat of the season in all competitions with a senior team.
The Reds were frustrated by the hosts’ playacting and Polish referee Szymon Marciniak’s performance as Atletico boss Diego Simeone whipped the Wanda Metropolitano crowd into a frenzy.
“Wow, that’s energy!” Klopp told BT Sport when asked about Simeone’s touchline antics.
Ahead of the second leg which will take place at Anfield, Klopp in a statement has sent a warning to Madrid.
“I don’t think I have to do that much to be honest (in the second leg), I hope I can be focused a little bit more on the game.
“Our people will be ready. Welcome to Anfield! It’s not over yet.”