Borussia Dortmund striker Sebastien Haller has said he will undergo further surgery as part of ongoing treatment for a testicular tumor which has sidelined the player.
The 28-year-old Ivory Coast striker had surgery earlier this year after discovering the tumor during a training camp in July and has been undergoing chemotherapy in recent months.
Haller, who previously played for English Premier League club West Ham United, briefly returned to training with former side Ajax Amsterdam last month.
“As planned from the start, different possibilities were considered following the chemo. I tell you the fight is not over for me,” Haller wrote in a Twitter post on Wednesday.
“I’m going to have to undergo an operation to get rid of this tumor that keeps me away from the field. I want to thank you all for the messages of support and the strength you give me in this ordeal. Looking forward to seeing you soon. ”
German side Dortmund signed Haller for an initial fee of 31 million euros ($32.18 million) at the end of the season after the striker scored 34 goals last season for the Dutch champions. Ajax – including 21 in the league and 11 in the Champions League.