Bayern already made a few squad changes. They released the previously loaned out Luca Toni from his contract and sold Christian Lell to Hertha BSC. The contracts of multiple players expired and were not extended: Michael Rensing eventually ended up at 1. FC Köln, while Andreas Görlitz joined FC Ingolstadt. Meanwhile, José Sosa was sold to Napoli.

Breno and Andreas Ottl both returned from 1. FC Nürnberg, where they had been on loan since the winter break; Toni Kroos came back from an 18-month loan to Leverkusen; and Edson Braafheid returned from a six-month spell at Celtic. Save for Rouven Sattelmaier, Bayern opted in the end to make no new signings in the summer transfer window ending at 31 August.

Head coach Louis van Gaal divided the pre-season into two phases, as many of his players participated in the World Cup and were only later available for the club. The initial phase began with the first training on 21 June. In this phase, which lasted until 4 July, the first squad trained with the second team and a friendly at the fanclub "Lohner Bayern Union" was held. On 30 June, the club announced that 18-year-old David Alaba had signed his first professional contract at Bayern.

The second phase began on 15 July. As 13 players participated in the 2010 World Cup, Van Gaal had only 11 first teamers at his disposal. His training squad was thus complemented with the second team.Franck Ribéry and Martín Demichelis were the first players from World Cup squads that resumed training, but only after the training camp in Riva del Garda from 19–24 July. The remaining nine players from the German and Dutch squads returned on 2 August. While Van Gaal was proud to have the most players of any club in the final games of the World Cup, he lamented that "this is not a good pre-season." But he was even more displeased with the FIFA scheduling an international matchday on 11 August, in between the Super Cup and the first round of the DFB-Pokal. The coach actually advised his players to ask the German Football Association (DFB) to be excused for the game: "If eight Bayern players said they'd withdraw, the DFB would listen, I believe." The warning ended in a healthy compromise, where most of the players with substantial playing time at the World Cup were not picked by German coach Joachim Löw. For Bayern, this meant losing only Toni Kroos and Mario Gómez to the international date. The pre-season ended on 16 August with the first round of the DFB-Pokal, where Bayern played Germania Windeck and advanced to the second round.

...
Wikipedia