Lewis Harry Holtby (born 18 September 1990) is a German professional footballer who plays as a midfielder for 2. Bundesliga club Holstein Kiel. Holtby began his professional career with Alemannia Aachen before signing for Schalke 04 two years later. He was subsequently loaned to VfL Bochum and Mainz 05 before returning to Gelsenkirchen where he lifted the DFL-Supercup in 2011. He then spent two seasons in England with Premier League sides Tottenham and Fulham between 2013 and 2014 before returning to Germany to sign for Hamburger SV. There, he spent five seasons, including the 2017–18 Bundesliga campaign in which the club was relegated for the first time in history, and made over 100 appearances before spending two seasons with EFL Championship side Blackburn Rovers between 2019 and 2021.