BBC Russian editor Famil Ismailov shares his insights into what's been going on between Wagner boss Yevgeny Prigozhin and President Vladimir Putin. How vulnerable is Prigozhin after his failed mutiny, and how has his relationship with the president changed? Inter Miami and Messi Why would footballing superstar Lionel Messi, who earlier this year captained Argentina to World Cup victory, sign with a team currently at the bottom of America's Major League Soccer? BBC Mundo's Atahualpa Amerise sheds light on the appeal of his new club Inter Miami for Spanish-speaking followers of the beautiful game. India and the Koh-i-Noor diamond For decades, campaigners in India have called for the repatriation of thousands of precious artefacts taken out of the country by the British, chief among them the Koh-i-Noor diamond, which forms part of the Crown Jewels. Zubair Ahmed from BBC Delhi explains why this is such a hot topic in India at the moment. Tunisia's anti-migrant attacks The killing of a Tunisian man during a brawl between Tunisians and migrants in the port city of Sfax on 3 July triggered a surge of racially motivated attacks. Over recent years, Sfax has seen the arrival of large numbers of migrants from sub-Saharan Africa en route to Europe. BBC Arabic's Bassam Bounenni visited the city to report on the aftermath of the violence. The Serbian love of swearing Language experts who’ve studied Serbian say that it stands out for the richness and creativity of its swearing. It was a topic tastefully tackled by BBC Serbian’s Jovana Georgievski. (Photo: Yevgeny Prigozhin and President Vladimir Putin. Credit: Reuters (L) and SPUTNIK/KREMLIN POOL/EPA-EFE/REX/Shutterstock (R)