JOHANNESBURG: South Africa’s sports minister branded Sunette Viljoen, the country’s Olympic javelin silver medallist, as “the most arrogant and thankless person… I’ve ever met” in an angry spat Monday (Tuesday in Manila) over cash bonuses. Fikile Mbalula and Viljoen exchanged insults on Twitter in the latest flare-up of a controversy in which the minister has been accused of breaking a promise to pay 70,000 rand ($5,200) to silver medal winners at the Rio Games. Viljoen earlier tweeted direct messages from Mbalula in which he wrote: “You said you don’t need it. So I stick with your wishes.” The two have a history of disputes, with Viljoen often criticizing how the government runs sport in South Africa. The South Africa Olympic committee paid bonuses to successful Olympians.