A look at what's happening in European soccer on Wednesday:

CHAMPIONS LEAGUE

Russian federations and athletes have filed multiple legal challenges to fight their bans from international sports events because of their country waging war on Ukraine.

The Court of Arbitration for Sport has said that Russian officials have filed appeals against governing bodies in soccer, figure skating and speed skating, gymnastics, rowing, rugby and biathlon.

It was the best of moments - or the worst of moments - in soccer history, and now sports fans with deep pockets can own a piece of it.

The shirt worn by Diego Maradona when he scored the controversial "Hand of God" goal against England in the 1986 World Cup is for sale for the first time.

Atlético Madrid wasn't making any excuses for the overly defensive style it used in the first leg against Manchester City in the quarterfinals of the Championship League on Tuesday.

Coach Diego Simeone and his players were actually proudly defending it.

Iran on Wednesday said it supplied the United Nations' nuclear watchdog with documents explaining the discovery of suspect enriched uranium traces, state media reported, the first acknowledgement from Tehran that it had answered the agency's long-standing demands.

The head of Iran's civilian Atomic Energy Organization, Mohammad Eslami, said Iran on March 20 had sent the requested explanations about several former undeclared sites in Iran where there was evidence of past nuclear activity.

Following a public uproar, Shanghai is allowing at least some parents to stay with children infected with COVID-19, making an exception to a policy of isolating anyone who tests positive.

The announcement came as China's largest city remained in lockdown and conducted more mass testing Wednesday following another jump in new cases.

India and Australia's trade ministers say a shared security partnership with the United States and Japan has helped them strike a trade deal that Australia hopes will reduce its dependence on exports to China.

Indian Commerce Minister Piyush Goyal is heading a business mission to the Australian cities of Melbourne, Sydney and Perth to explore new opportunities created by the interim deal signed virtually on Saturday.

Sri Lanka's president will not step down and instead will face the country's political and economic crisis, a key government minister said Wednesday despite continuing large protests that are demanding his resignation.

Sri Lanka has endured months of shortages of fuel and other essentials, and the protests over the economic troubles have spread nationwide and expanded to criticism of President Gotabaya Rajapaksa and his politically powerful family.

Sudan's pro-democracy groups called for mass protests on Wednesday, denouncing an October military coup that plunged the country into political turmoil and aggravated its economic woes.

The call for marches was the latest of many to pressure the generals, whose takeover triggered near-daily street protests demanding civilian rule.

An assailant has stabbed three clerics at the most revered Shiite site in Iran, according to Iranian state-run media, killing one and injuring two before he was arrested. The motive for the attack remained unclear.

One cleric died almost instantly after being stabbed at the Imam Reza shrine, a major pilgrimage site for Shiite Muslims in Iran's holy northeast city of Mashhad. Two others were hospitalized, Iran's state-run IRNA news agency reported.