Former West Ham striker Sebastien Haller is to undergo surgery to remove a testicular tumour.
The 28-year-old, who now plays for Borussia Dortmund, has been undergoing chemotherapy after being diagnosed with testicular cancer in July.
He wrote on Twitter: 'As planned from the beginning, different possibilities were considered following the chemo.
Sebastien Haller will have surgery to remove a testicular tumour as the Borussia Dortmund striker targets a return to action
The 28-year-old presented an award at the recent Ballon d'Or ceremony in Paris
Comme prévu depuis le début, différentes possibilités étaient envisagées suite aux chimio.