Dortmund striker Haller to undergo surgery on tumour

SET FOR SURGERY: Sebastian Haller. Pic: Joe Giddens/PA Wire.

Borussia Dortmund striker Sebastien Haller said he will undergo further surgery as part of ongoing treatment for a testicular tumour that has kept the player sidelined.

The 28-year-old Ivory Coast forward had surgery earlier this year after discovering the tumour while at a training camp in July, and has been undergoing chemotherapy in recent months.