Looking at how impressive Serhou Guirassy was last season, I think it was one of the major reasons Borussia Dortmund went for him which I think is a good move as they try to strengthen the team however, I don't see the club retain Sebastian Haller and Niklas Fullkrug alongside their new striker.
I agree that Serhou Guirassy showed an impressive very good performance last season and that Dortmund was very lucky as there was a few other Europe Top Clubs to get Guirassy.
Even i am a big fan about Füllkrug and Haller i guess that one of them will be leaving the Club.
Donyell Malen and Guirassy together can be very good combination for Dortmund to get fast forward on the field.
The signing of Serhou Guirassy would be a fitting addition to Dortmund front line next season, previously the deal between Dortmund and Serhou Guirassy was almost canceled after Serhou Guirassy got injured so that Dortmund started to rethink signing Serhou Guirassy, Guirassy performance last season was a consideration for Dortmund to sign him and they were very lucky to get a striker who had scored 30 goals last season for just a very cheap price compared to other top strikers at the moment, Guirassy ability cannot be doubted in terms of scoring goals, so I think Dortmund next season will have a very dangerous attacking line and is ready to compete with Munich in the Bundesliga title race, at the moment we have not seen any possibility that Haller and also Fulkrug will leave Dortmund so we can say that Nuri Sahin will probably try to provide opportunities for the three of them to compete in the dortmund Front line next season as main striker.