BORUSSIA DORTMUND striker Sebastien Haller has confirmed he needs to undergo further surgery to remove his testicular cancer tumour.
The ex-West Ham star hasn’t played for the Bundesliga giants since his summer move from Ajax after being diagnosed with the illness.
Haller has been undergoing chemotherapy for several months and was all smiles following his last update soon after getting the news.
But the striker confirmed on Twitter he still needs more treatment.
The Ivory Coast international said: “As planned from the beginning, different possibilities were considered following the chemo.