1. FC Union Berlin have signed 27-year-old goalkeeper Loris Karius on loan from Liverpool until the end of the season. 

Karius' career kicked off with a move to Manchester City's academy in 2009. He eventually found home in Mainz and signed in 2012. Karius established himself as the number one goalkeeper in Mainz and appeared 91 times for the Carnival Club. His performances earned him the move to Liverpool in the Premier League, where he teamed up with former Mainz and Borussia Dortmund coach Jürgen Klopp. Karius helped Liverpool to the Champions League final in 2018 and has since been on loan at Besiktas in Turkey.

“I'm looking forward to my new opportunity in Berlin and I’m happy to be playing in the Bundesliga again. Union is a special club, one that has earned a great deal of respect, not just by promotion to the Bundesliga. I would like to play my part in this positive development and help to achieve the great goal of staying in the Bundesliga," said Loris Karius after his signature.   

"The signing of Loris Karius means we have secured a goalkeeper with great national and international experience. His strengths are well known, so we are pleased to be in an excellent position in this important role of the team from our perspective. For Loris it offers the chance to focus again on the Bundesliga in a stable environment and to try to stay in the league with Union,” said Oliver Ruhnert, Director of Professional Football at 1. FC Union Berlin.

Karius will wear the number 20 shirt this season.