The Champions League semifinal lineup will be settled this week, with Liverpool and Real Madrid needing to defend two-goal leads to make it through.

The other two games are more finally poised with Villarreal and Manchester City only holding one-goal advantages.

Novak Djokovic is ready to move on from the controversy surrounding his refusal to get vaccinated against COVID-19.

"I miss competition," the Serbian tennis star said Sunday on the opening day of the clay-court season at the Monte Carlo Masters in Monaco. "I still feel motivation to be on the tour and compete… and try to challenge the best players in the world for the biggest titles."

The World Bank says Ukraine's economy will shrink by 45.1% this year because of Russia's invasion, which has shut down half of the country's businesses, choked off imports and exports, and damaged a vast amount of critical infrastructure.

Unprecedented sanctions imposed by Western allies in response to the war, meanwhile, are plunging Russia into a deep recession, lopping off more than a tenth of its economic growth, the World Bank said in a report Sunday.

Twitter's largest investor, billionaire Elon Musk, is reversing course and will no longer join the company's board of directors less than a week after being awarded a seat.

Twitter CEO Parag Agrawal announced the news, which followed a weekend of Musk tweets suggesting changes to Twitter, including making the site ad-free. Nearly 90% of Twitter's 2021 revenue came from ads.

President Joe Biden is set to speak with Indian Prime Minister Narendra Modi on Monday as he presses world leaders to take a hard line against Russia's Ukraine invasion.

India's neutral stance in the war has raised concerns in Washington and earned praise from Russian Foreign Minister Sergey Lavrov, who lauded India this month for judging "the situation in its entirety, not just in a one-sided way."

Italian Premier Mario Draghi travels to Algeria on Monday to sign a deal for additional natural gas, the latest push by a European Union country to acquire alternative energy sources to reduce dependence on Russia following its invasion of Ukraine.

Russia is Italy's biggest supplier, representing 40% of total imports, followed by Algeria, which provides some 21 billion cubic meters of gas via the Trans-Mediterranean pipeline. The new deal would add an extra 9 billion cubic meters of gas from Algeria, just eclipsing Russia's 29 billion cubic meters a year.

Jordan's monarch is traveling to Germany Sunday for a spine surgery, Jordan's palace announced.

King Abdullah II, 60, will undergo a surgery to treat "a herniated disk in the thoracic spine" at a hospital in Frankfurt next week, and will return home after a recovery period of one week.

A delegation from the European Union election observers on Monday wrapped up a six-day visit to Lebanon during which they discussed the deployment of observers ahead of the upcoming May 15 parliamentary elections in the crisis-hit country.

A showdown looms in Ukraine after Russia appointed a new military commander and looked to concentrate its attacks in the east, while Ukraine's president said his troops will hold their ground, urging Western leaders, in particular President Joe Biden, to do more.

Ukrainian President Volodymyr Zelenskyy warned Sunday in a nightly address that this week will be as crucial as any during the war, saying "Russian troops will move to even larger operations in the east of our state."

French President Emmanuel Macron may be ahead in the presidential race so far, but he warned his supporters that "nothing is done" and his runoff battle with far-right challenger Marine Le Pen will be a hard fight. And she's ready for it.

The duel is starting Monday, after the two came out on top in Sunday's first-round vote. The centrist Macron is heading to an economically depressed area of northern France where a majority of voters chose Le Pen, close to her electoral stronghold of Henin-Beaumont.