Borussia Dortmund's new signing Sebastien Haller will be out for several months as the striker has to undergo chemotherapy for a malignant testicular tumour, the Bundesliga club said on Saturday.
The Ivory Coast striker underwent surgery last week after the tumour was discovered during a training camp but the club said the histological findings revealed a malignant testicular tumour which require him to undergo chemotherapy.
"Sebastien will now receive the best possible treatment. The chances of recovery are very good," Dortmund's sporting director Sebastian Kehl said in a statement.
