Thomas Delaney was born on 03/09/1991 in Frederiksberg, Denmark. Delaney started playing youth football at Kjøbenhavns Boldklub, the reserve team of multiple Danish champions F.C. Copenhagen. On 17 August 2016, Werder Bremen announced Delaney would be joining the club in January 2017. On 1 April 2017, Delaney scored a hat-trick, the first of his career, in Werder Bremen’s 5–2 win away against SC Freiburg. On 7 June 2018, Delaney signed for Borussia Dortmund on a four-year contract. The transfer fee paid to Werder Bremen was reported as €20 million.