The Blues fell to defeat in the International Champions Cup at Soldier Field in Chicago, courtesy of Mario Gotze's first-half penalty, as the Premier League Champions bloodied a youthful XI with the majority of the senior squad on holiday after their World Cup exploits.
Liverpool had a €13 million bid rejected for Pulisic back in August 2016 and, although Klopp believes the 19-year-old is still unavailable for a transfer, he admits he remains a fan of the USA worldwide.
"He has a contract at Dortmund". That's the first problem.
Asked if he still had ambitions to be involved for England, Hart said: "Of course".
"I like Christian, I've known him since he was a kid". I've played at the highest level for a long time and done a lot of things in the game.
"If he wants to play in England one day or whatever and he, for sure, has the chance to do so".
City are in favour of the move and believe a year in La Liga will be good for Diaz's development as a player, but the report from Spain is consistent with the one from England - stating Brahim is now refusing a move and is eager to prove his worth to Guardiola.
Girona FC continue to press for Manchester City wonderkid Brahim Diaz on loan next season - but the player is resisting a temporary switch to the La Liga club, Catalan newspaper SPORT reports.
More and more instances are presenting themselves where the player power is superior to that of a football club and this is something that Liverpool are aware of after recent sagas involving Philippe Coutinho and Virgil van Dijk.
"I like him, but we respect contracts and there's no market I know about him".