Sébastien Haller to Undergo Chemotherapy After Testicular Tumor SurgeryThe Dortmund striker needed surgery to remove a malignant tumor.Associated Press|Share on FacebookShare on XAdd us as a preferred sourceSébastien Haller to Undergo Chemotherapy After Testicular Tumor SurgeryPublished Jul 30, 2022 | Modified Jul 30, 2022ASSOCIATED PRESSShare on FacebookShare on XHome/Soccer