Borussia Dortmund made number of changes to their squad. In summer transfer window club made big signings to strengthen the team squad before the new Bundesliga season 2017-18 will kickoff. Some players contracts have been extended. Dortmund finished at 3rd place last year in Bundesliga. Performance in champions league improved as they have undefeated in the group stage matches with 4 wins and 2 draws.
| Players | Age | Weekly Wage | Contract Period |
| Roman Bürki (GK) | 26 | £50,000 | 2017-19 |
| Dominik Reimann (GK) | 20 | £15,000 | 2017-18 |
| Marc Bartra | 26 | £60,000 | 2017-20 |
| Erik Durm | 23 | £40,000 | 2017-19 |
| Raphael Guerreiro | 23 | £75,000 | 2017-20 |
| Park Joo-Ho | 30 | £35,000 | 2017-18 |
| Sokratis Papastathopoulos | 29 | £90,000 | 2017-19 |
| Lukasz Piszczek | 32 | £55,000 | 2017-19 |
| Marcel Schmelzer | 28 | £50,000 | 2017-21 |
| Neven Subotic | 28 | £40,000 | 2017-20 |
| Ömer Toprak | 28 | £80,000 | 2017-21 |
| Gonzalo Castro | 30 | £70,000 | 2017-20 |
| Mahmoud Dahoud | 21 | £120,000 | 2017-22 |
| Mario Götze | 25 | £150,000 | 2017-20 |
| Shinji Kagawa | 28 | £90,000 | 2017-20 |
| Sebastian Rode | 26 | £55,000 | 2017-18 |
| Nuri Sahin | 28 | £60,000 | 2017-19 |
| André Schürrle | 26 | £85,000 | 2017-21 |
| Julian Weigl | 21 | £100,000 | 2017-21 |
| Pierre-Emerick Aubameyang | 28 | £170,000 | 2017-20 |
| Jacob Bruun Larsen | 17 | £15,000 | 2017-22 |
| Christian Pulisic | 19 | £25,000 | 2017 |
| Alexander Isak | 18 | £30,000 | 2017-19 |
| Maximilian Philipp | 23 | £140,000 | 2017-19 |
| Marco Reus | 28 | £160,000 | 2017-19 |
| Andriy Yarmolenko | 27 | £120,000 | 2017-21 |
Peter Bosz club manager bring new players to the squad. They have signed quality defenders to improve the defensive tactics this season. Ömer Toprak, Dan-Axel Zagadou,and Jeremy Toljan top three defensive players signed by the club during the summer transfer window 2017-18. Pierre-Emerick Aubameyang and Marco Reus highest earning weekly players in the squad.
Peter Bosz Annual Salary (£2.2 Million):
Peter Bosz who made his managing career debut in year 2000 with the team of AGOVV. Recently after leaving the club (Ajax Amsterdam) joined the Borussia Dortmund. He signed two year contract with club till 2019.