The heavyweight champion knocked out his opponent in the fifth round in Germany.
The European Union is also expected to add targets to its Russia sanctions list on Monday.
While Asian markets fretted about Ukraine and rising oil prices, markets in US and Europe are buoyed by M&A buzz.
Obama continues to seek unity - and stronger measures - vs. Moscow.
Global markets on alert, with the crisis in Ukraine to euro zone inflation and beyond.
Extraordinary footage catches an attack on a Ukrainian military helicopter.
The horrible accident that turned a quiet region in Eastern Europe into eerie ghost country.
CEO Elon Musk is filing a lawsuit to allow competition for contracts. "If SpaceX competes and loses, that's fine," he insists.
Russia's currency was downgraded Friday by S&P, and the rating may sink lower if further sanctions are imposed.
The world's worst nuclear accident turned a swath of Ukraine into wasteland. Today it's a wildlife sanctuary: transformed, but still dangerous.
Russia's interest rate hike after an S&P downgrade signals growing concern the nation may trade economic growth for territorial ambition.
With escalating tensions in eastern Ukraine, there is speculation that President Putin is repeating a strategy he used in Crimea.
Merkel added that the EU and G-7 nations would consider part two of a potentially three-stage sanction punishment process.
President Barack Obama said he will press European allies to impose more sanctions if Russia steps up action in Ukraine.
Bank of Russia says it will keep rates elevated.
The Russian currency has fallen more than 8 percent against the dollar this year, while outflows grew to $51 billion in Q1 of 2014.
Russia has responded to the killing of pro-Moscow separatists by starting military operations on the Ukrainian border.
Despite the Geneva agreement that provided a conflict-resolution outline for Ukraine, parties including Russia have started to move troops.
Ukraine said under the Vienna Document of the Organization for Security and Cooperation in Europe it was entitled to an exercise account.
The reporter for Brooklyn-based Vice News was freed after being held by pro-Russian insurgents for two days.
The IMF tentatively agreed in March to provide a $14-18 billion bailout to help Ukraine recover from months of political/economic turmoil.
Russia has threatened to do the same in previous east-west spats, but each time failed to follow-through.