Tennis star Novak Djokovic and his wife own an 80 percent share in a Danish biotech firm developing a treatment for COVID-19 that does not involve vaccination, the company’s boss said on Wednesday. The Serbian native 34, and his wife Jelena, 35, bought a majority stake in QuantBioRes back in June 2020, just months into the pandemic, the company’s chief executive Ivan Loncarevic confirmed to Reuters. Loncarevic did not say how much the stake was worth but confirmed that Djokovic owns 40.8 percent while his wife owns 39.2 percent of the company. Efforts to contact a Djokovic spokesperson for comment were unsuccessful. QuantBioRes has about 12 researchers working in Denmark, Australia, and Slovenia, according to Loncarevic, and the company is developing a peptide that inhibits COVID-19 from infecting the human cell. The CEO stressed that the company was working on a treatment and not a vaccine for COVID-19, and expects to launch clinical trials in Britain this summer, according to Loncarevic. The …