On 19 April 2013, Rüdiger extended his contract with Stuttgart until June 2017.[6] On 4 May he received a red card in the 74th minute of a 2–0 home defeat against Greuther Fürth.[7] On 1 June, Rüdiger played in the final of the DFB Pokal in a match lost 3–2 against Bayern Munich.[8] He finished his second season in the first team with 24 appearances, plus 4 appearances and 2 goals in the reserve team.[4]