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The "Salvator Mundi" — the world's most expensive painting — is also the subject of a $1B battle between a Russian oligarch and a Swiss art dealer, which is set to heat up again.

Saudi Arabia is requiring all pilgrims for the scaled-back, annual Hajj in July to be vaccinated against COVID-19. In Tanzania, where vaccinations have still not begun, Muslims hoping to go to Mecca are urging authorities to start jabbing. Charles Kombe reports from Dar es Salaam.

Manchester City fans piled onto the pitch at Sedgley Rugby Club in the north of the city to watch their side lose the Champions League Final against Chelsea on Saturday night. The fans watched on a big screen set up in the stands as their side failed to break down Chelsea who took, and kept, the lead through Kai Havertz.

CNN's Pamela Brown calls out Republicans touting support for police officers by saying "back the blue," but blocking a bipartisan investigation into the January 6 Capitol insurrection that left 140 officers injured, one officer dead and two others who later died by suicide.

CNN's Pamela Brown talks to Ray Carlisle of the band Teenage Bottlerocket about a Florida concert promoter's plan to offer a massive discount to people who have been vaccinated. Leadfoot Promotions is selling tickets to an upcoming show for $18 to those who are vaccinated, and $999 for those who are not.

Chelsea clinched the Champions League title after beating Manchester City 1-0 in the all-English final.

CNN's Jim Acosta pushes back on former acting Director of National Intelligence under the Trump administration Richard Grenell's claim that the January 6 Capitol insurrection was just "a bad riot."

The funeral of renowned Italian ballerina Carla Fracci took place at the San Marco church in Milan on Saturday. Hundreds of people gathered outside the church to bid the star a final farewell, with applause ringing out as the hearse carrying her coffin arrived for the service.

Fourteen-year-old Aiden Fucci is being charged as an adult with first-degree murder in the brutal stabbing of 13-year-old Tristyn Bailey. The initial charge of second-degree murder in connection with Bailey's death was upgraded to first-degree murder due to the nature of the crime, officials announced.

The remains of 215 children, some as young as 3 years old, have been found buried on the site of what was once Canada's largest Indigenous residential school – one of the institutions that held children taken from families across the nation. (May 29)

The iconic Sagrada Familia basilica reopened in Barcelona on Saturday after a protracted period of closure due to COVID-19. The second most-visited church in Spain is still operating with limited visiting hours. Despite this, more than 1,000 tickets are being sold online every hour.

Michael Smerconish discusses why we need to care about whether Coronavirus began by jumping naturally from wildlife to people or whether it escaped from a lab.