Celtic have completed the signing of German midfielder Mika Baur from Paderborn for an undisclosed fee. The 22-year-old has committed to a four-year contract, which includes an option for a further year.
Baur played a key role in Paderborn's return to the Bundesliga after a six-year absence, following their third-place finish in the second tier last season. He made 36 appearances, contributing four goals and six assists, including in their play-off victory against Wolfsburg.
The midfielder, who previously played for Freiburg's second team before joining Paderborn two years ago, also spent time on loan at Dynamo Dresden, helping them achieve promotion to Bundesliga 2.