Germany wanted the 23 year old to represent them but this would of resulted in Karius missing the opening two games of the Premier League season.
After a chat with Klopp the German goalkeeper opted to put club before country as he bids to be in the starting eleven for the start of the season.
“I spoke with the manager and we said that it didn’t make sense for me to go to the Olympics as I would miss the first two league games of the season and of course I want to play in them,” Karius explained.
“We agreed together I wouldn’t be going. First I spoke with Jürgen and then together we spoke with the German people who wanted me to go. The priority is the club. It’s more important that I am available for the start of the season.”
Karius played 45 minutes in the Reds preseason 5-0 win over Fleetwood town and Karius is relishing the challenge ahead of him.
He added: “What we talked about stays with us. Of course I know a club like this has more competition.
“It’s a bigger club and better players means more competition, but I am not scared of anything. If I was, I wouldn’t have come here. I have a good feeling.
“I wouldn’t come here to sit on the bench. That doesn’t make sense. I’m not a ‘keeper who hasn’t shown his ability. I’m a good goalkeeper and I’ve shown that a lot.
“I could have stayed at Mainz and played there. If I wasn’t sure I could come and play here this season, I wouldn’t have done it.”
Karius states he is happy to be back in England after having a 5 year stay in Manchester in the youth academy of Manchester City.
“When I left Man City I was still really young and I decided to go somewhere else to get some first-team experience,” he continued.
“I took the step to Mainz. I needed to join a smaller club to get my career going as a young player – I did everything right with that move.
“I had almost three full seasons in the Bundesliga there. I am still young but I’ve played around 100 games in the Bundesliga so I have some experience.
“I thought it was time to take the next step in my career. The opportunity to join Liverpool came up and I thought it was a good next step for me.”