Lukas Rupp was born in Heidelberg and played in the youth setups at both TSG Weinheim and Karlsruher SC. From there, the central midfielder moved to Borussia Mönchengladbach. After a loan spell at SC Paderborn, he moved to VfB Stuttgart in summer 2015. After just one year there, the former Germany youth international moved to Kraichgau ahead of the 2016/17 campaign. Rupp is one of the top players in terms of ground covered in the Bundesliga, is technically gifted and is good at reading the game.