Liverpool got their International Champions Cup campaign off to a poor start on Sunday as they were defeated 3-1 by Borussia Dortmund.Jurgen Klopp's side took the lead through Virgil van Dijk in the first half, but three second half goals from the German side gave them victory.Many players shone on the night, but the best performance of the game was undoubtedly produced by Christian Pulisic.The U.S.A international thrived in front of his home fans, managing to score twice and assist Jacob Bruun Larsen's late goal after being introduced at half-time.But despite putting in a standout performance, and being given the vote of the International Champions Cup broadcasters, Pulisic did not receive the Man of the Match award.This decision confused many fans who watched the game, although there's actually a very good reason for it.This is because the accolade was sponsored by brewers Heineken.You have to be 21 to drink alcohol in North Carolina, which obviously causes a problem for Pulisic, who is just 19 years old.Van Dijk, who scored the opener and helped his team to a clean sheet in the first half, was given the accolade instead.That's unfortunate for Pulisic. Although he may be disappointed he was not given the award, he would have been ecstatic with his performance against the English side.One of those impressed with the 19-year-old was Klopp."I didn't see anything new, just that he's a bit older and has new tattoos!" he said after the game. "He's a fantastic, skilled boy, and it's not a surprise to see."He's a smart player, and unfortunately the USA needs more of these players. He alone cannot do it all."Don't put too much pressure on the boy, hopefully you can have a few more of them and then play very successful soccer in the future."If Belgium and Iceland can go to a World Cup then so can the USA. I think he'll be fine."Pulisic also earned admirers for his treatment with a young fan after the game.The boy ran onto the pitch in an attempt to meet the star, but he was caught by security.With the young fan being dragged away, Pulisic intervened, and made sure he got a picture with him.

True class from the Dortmund winger.