is a Polish professional football manager and player for III liga club Goczałkowice-Zdrój. Primarily a right-back, he is also capable of playing as a centre-back. From 2024 to 2025, he served as an assistant manager of Bundesliga club Borussia Dortmund.

He began his senior career as a footballer by joining Hertha Berlin in 2004. He played on loan for the Ekstraklasa club Zagłębie Lubin until 2007 when he returned to Hertha and was deployed as a right back. Between 2010–2021, he played for the German club Borussia Dortmund appearing in 363 official matches for the club, winning two consecutive Bundesliga titles in 2011 and 2012, three DFB-Pokal Cups, three DFL-Supercups as well as reaching the 2013 UEFA Champions League Final. He used to be a Poland national team member, making his debut in 2007 and going on to receive over 60 caps. He was also selected for four tournaments during his time with the national team, playing in three UEFA European Championships and the 2018 FIFA World Cup.

He confirmed his retirement from international football in 2018 following the conclusion of the 2018 FIFA World Cup. However, in November 2019 he made one more competitive appearance for the national team, informally dubbed his farewell game. In 2021, he decided to return to LKS Goczałkowice-Zdrój, the Polish club where he started his football career as a junior.