Birmingham City have made their first major move of the January transfer window, confirming the signing of defender Kai Wagner from Philadelphia Union for an undisclosed fee.
Deal Details and Contract
The club announced the deal on 2nd January 2026, with the versatile German international putting pen to paper on a two-and-a-half year contract that will keep him at St Andrew's until the summer of 2028. While the exact fee remains officially undisclosed, respected Sky Sports Germany reporter Florian Plettenberg reports the transfer is valued at approximately €2.3 million (£2m).
Wagner, who will wear the number 31 shirt, is primarily a left-back but offers the flexibility to play in a more advanced wing role. His arrival provides immediate competition for Alex Cochrane, with regular left-back Lee Buchanan currently sidelined with a knee injury.
Who is Birmingham's New Signing?
The 28-year-old began his career in Germany with spells at SSV Ulm, Schalke 04 II, and Würzburger Kickers before his 2019 move to the MLS. Wagner quickly established himself as one of the league's most creative defenders.
During his seven-year stint in the United States, he became renowned for his attacking output, amassing an impressive 63 assists. His consistency was recognised with two inclusions in the prestigious MLS Best XI, in 2022 and again in 2025. Last season, he contributed 11 assists and two goals, underlining the creative quality he brings to Chris Davies's squad.
Impact and What It Means for Blues
This signing represents a significant creative boost for a Birmingham side that has sometimes struggled in attack. Wagner's proven delivery from wide areas and set-pieces offers a new weapon for the Championship campaign.
While he may need a short period to adapt to the rigours of English football, his pedigree and experience suggest he can make a swift impact. The deal signals a statement of intent from the club's hierarchy as they look to strengthen their push in the second half of the season.