In the 2012–13 season, Bayer Leverkusen finished in third place in the Bundesliga. As the third place team, they qualified for the group stage of Champions League. During the off-season Kostas Stafylidis, Robbie Kruse, Andrés Palop, Son Heung-min and Emre Can were signed.Daniel Schwaab, Hajime Hosogai, Michael Rensing, Dani Carvajal, André Schürrle, and Michal Kadlec were sold.Junior Fernándes was loaned out to Dinamo Zagreb.Nicolai Jørgensen made his loan move permanent and Manuel Friedrich was released.Sami Hyypiä became the sole head coach after Sascha Lewandowski left his position as co–head coach. Lewandowski remained with the club in the youth set-up. Bayer Leverkusen announced a three–year partnership agreement with the tourism agency with Austrian state of Salzburg. The agreement includes an annual summer training camp in Kaprun, at least one friendly against an "attractive opponent" during the training camp, vents in and around Leverkusen, public relations and promotional activities at the club and in North Rhine Westphalia, targeted hospitality measures at the stadium, International press conferences at the training camps, advertising at the BayArena perimeter advertising at Bayer Leverkusen home games, online presence on all relevant channels at Bayer Leverkusen, Salzburg articles in all Bayer 04 Leverkusen print media. Bayer Leverkusen started pre–season training on 24 June with eight players. Reserve and youth teams players came to training to improve the number situation for training. Bayer Leverkusen announced on 12 December that they signed Julian Brandt for the winter transfer period. The following day, Bayer Leverkusen announced that they brought in Ryu Seung-Woo on loan for a year with the option to purchase. Players reported back on 4 January and traveled to Lagos, Portugal for mid–season training camp and had their first training session on 5 January. Bayer Leverkusen are interested in Kevin De Bruyne and met with him and his representative on 16 December. But De Bruyne ended up signing with VfL Wolfsburg.

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