(Refiles to additional subscribers) MILAN, May 19 (Reuters) - Oaktree Capital Group is set to buy Lionrock’s minority stake in Inter Milan as part of a 275 million euro ($336 million) financing deal needed to shore up the Serie A club’s finances, two sources close to the matter said. Chinese retail giant Suning owns 68.5% of the top league club, which is suffering due to the fallout from the COVID-19 pandemic, with Lionrock Capital owning the rest. Oaktree, Lionrock and Suning all declined to comment. ($1 = 0.8194 euros) (Reporting by Elisa Anzolin and Elvira Pollina, writing by Maria Pia Quaglia; editing by Valentina Za) Our Standards: The Thomson Reuters Trust Principles.