Due to a scheduling clash, Liverpool were forced to pick a side with an average age of just 19 at Villa Park because their first-team squad are in Qatar for the 2019 FIFA Club World Cup:
Squawka Football @Squawka
January 2017: Liverpool field the youngest starting XI in their club history with an average age of 21 years and 296 days. *1,073 days later* December 2019: Liverpool field the youngest starting XI in their club history with an average age of 19 years and 186 days. https://t.co/trGOWatliA
The UEFA Champions League winners play Mexican side Monterrey in the semi-finals on Wednesday.
That did not stop Klopp sending a message to his side when they were 4-0 down at the break against Villa.
According to Neil Critchley, the Reds' under-23 coach, who was in the dugout on Tuesday in place of Klopp, the German manager was keeping an eye on proceedings from over 4,000 miles away. He said:
"We had some information at half-time from the manager. It was to keep playing the way we were playing, keep being brave. He was out there watching with staff and players, and I'm sure he'll be proud of the way we played.
"This is what has been decided by the club as the best solution, and try telling those players this has been a bad [experience] for them. Maybe one or two of our players will be sneaking off on a plane joining the first-team group in Qatar."
The Villa side that played on Tuesday was not exactly first string, with manager Dean Smith making 10 changes from the team that lost 2-0 to Sheffield United in the Premier League on Saturday.
However, in terms of experience, the hosts had a significant edge over Liverpool, and it showed.
Conor Hourihane opened the scoring in the 14th minute, and Morgan Boyes turned into his own net three minutes later.
A double from 30-year-old Jonathan Kodjia before the break effectively put the game to bed before Klopp could make any intervention.
In the second half, the only goal came from Wesley in stoppage time as Villa made the semi-finals of the competition for the first time since 2012-13—they last won it in 1996.
Villa will now wait to see who they face in the last four.