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Oklahoma City Thunder star Nikola Topic's shock cancer diagnosis revealed as 20-year-old begins chemotherapy MORE: Nationals to make Blake Butera youngest MLB manager in 50 years By DANIEL MATTHEWS, US SENIOR SPORTS WRITER Published: 16:52 GMT, 30 October 2025 | Updated: 17:33 GMT, 30 October 2025 NBA champion Nikola Topic has been diagnosed with testicular cancer, Oklahoma City Thunder General Manager Sam Presti has revealed. The Serbian point guard, 20, is already undergoing chemotherapy - just months after helping the Thunder win the NBA championship. But he is still working out and training - despite the diagnosis - and Presti said Topic's doctors are 'extremely positive about his outlook in dealing with this situation.' 'He had a testicular procedure at the very beginning of training camp. That procedure was necessary... to determine if Nikola was dealing with a case of testicular cancer,' the GM said. 'The results of the biopsy have been returned and he is dealing with a case of testicular cancer. He has a tremendous group of oncologists... and they are extremely positive about his outlook in dealing with the situation.' Presti added: 'Tope didn't want to make this information public until he had begun the actual treatments, which he has recently. He's been in here, he's training, he's working out - through this entire process he's been able to do that. Nikola Topic is battling testicular cancer, Oklahoma City Thunder GM Sam Presti has revealed 'He has our total support, encouragement and love,' Presti said in his statement on Thursday Sam Presti gives an injury update on Nikola Topic who has found out he has testicular cancer. Topic’s treatment plan is chemotherapy, which he has started. pic.twitter.com/mShPDo4JnI — Rylan Stiles (@Rylan_Stiles) October 30, 2025 'But as we all know, this will be a challenging treatment process to go through but the team of physicians he has around him are extremely positive about his long-term outlook.' The GM said that the Thunder's 'only expectation' of Topic - a first-round draft pick in 2024 - is to focus on his cancer battle. 'This is his most important priority - he'll be back playing basketball when he's able to but we're not putting any type of expectations on that, obviously,' Presti explained. 'He has our total support, encouragement and love. Guys on the team have been amazing. Tope is a really remarkable guy... extraordinarily mature, composed, resilient. 'He has all the tools that you could ask for, for somebody to take on and conquer this situation.' Back in 2008, Nuggets forward Nene underwent surgery to treat testicular cancer. He returned to the court and went on to play in the NBA until 2020. NBAOklahoma City Thunder Share or comment on this article: Oklahoma City Thunder star Nikola Topic's shock cancer diagnosis revealed as 20-year-old begins chemotherapy Add comment