Erik ten Hag wished his former Ajax striker Sebastien Haller well after Borussia Dortmund s new signing was forced to leave the club s pre-season training camp due to a testicular tumour.
Haller enjoyed a stellar season under Ten Hag s management of the Eredivisie giants in 2021-22, scoring 21 league goals and netting 11 times in eight Champions League games to earn a move to Bundesliga giants Dortmund.
But Haller stepped away from his new club s pre-season training camp in Switzerland on Monday after feeling unwell during a session, with subsequent tests revealing the tumour.
The Ivory Coast international told social media followers he was focused on his recovery on Tuesday as Dortmund pledged to offer an update on his condition when possible.
Halle…