Tag: Dortmund Striker Haller Has Testicular Tumour

  By Sedara Oluwadara Sebastien Haller has left Borussia Dortmund’s pre-season training camp in Switzerland after a tumour was found in his testicle, says the German club.   The 28-year-old Ivory Coast international recently joined the Bundesliga side from Dutch club Ajax.     Dortmund said Haller “complained that he felt unwell after training on…