Borussia Dortmund striker Sebastien Haller has thanked his well-wishers after being diagnosed with a testicular tumour.
The Ivorian, 28, left the team's pre-season training camp in Switzerland on Monday after the discovery of the tumour following a medical examination.
Haller said on Twitter: “Thank you all for your many messages of support and affection since yesterday’s announcement. My family and I thank you. I will now focus on my recovery to come back stronger.”
Further tests are scheduled to take place in a specialist medical facility over the coming days, the German club said.
Dortmund announced Haller’s diagnosis on Twitter and the club’s sporting director Sebastian Kehl said: “This news today came as a shock to Sebastien Haller and everyone else.
“The entire BVB family hopes that Sebastien makes a full recovery as soon as possible and that we can give him a hug again soon.
“We’ll do everything in our power to ensure that he receives the best possible treatment.”
Haller’s teammate at Dortmund, England midfielder Jude Bellingham, tweeted his support for the former West Ham United striker.
Bellingham said: “Stay strong and get better soon brother, we’re all with you!”
Haller joined Dortmund earlier this month on a four-year contract as a replacement for Erling Haaland, who has signed for Manchester City.
Dortmund paid Ajax €31 million ($31.5 million) for Haller after he scored 47 goals in 66 appearances for the Dutch side after joining in 2021 from West Ham.
His 21 league goals in 31 games saw him finish as top scorer in the 2021/22 Eredivisie as Ajax secured a record-extending 36th title.
Dortmund's first game of the new Bundesliga season is against Bayer Leverkusen on August 6, eight days after heading to third-tier 1860 Munich in the first round of the German Cup.
100 notable summer transfers
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Director: Rupert Wyatt
Rating: 3/5
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THE TWIN BIO
Their favourite city: Dubai
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SNAPSHOT
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COMPANY PROFILE
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Catchweight 82kg
Piotr Kuberski (POL) beat Ahmed Saeb (IRQ) by decision.
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Lightweight
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The five pillars of Islam
The specs: 2018 Nissan Altima
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1. Black holes are objects whose gravity is so strong not even light can escape their pull
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Trump v Khan
2016: Feud begins after Khan criticised Trump’s proposed Muslim travel ban to US
2017: Trump criticises Khan’s ‘no reason to be alarmed’ response to London Bridge terror attacks
2019: Trump calls Khan a “stone cold loser” before first state visit
2019: Trump tweets about “Khan’s Londonistan”, calling him “a national disgrace”
2022: Khan’s office attributes rise in Islamophobic abuse against the major to hostility stoked during Trump’s presidency
July 2025 During a golfing trip to Scotland, Trump calls Khan “a nasty person”
Sept 2025 Trump blames Khan for London’s “stabbings and the dirt and the filth”.
Dec 2025 Trump suggests migrants got Khan elected, calls him a “horrible, vicious, disgusting mayor”