Who knows what’s going through Mike Perez’s head this week?

Ukrainian ex-world boxing champion Vitali Klitschko has announced he will not run for president and will instead throw his support behind billionaire businessman Petro Poroshenko.

AND they said irony was dead? After casually waving goodbye to 10 economic emigrants an hour, Enda Kenny’s great reward may be a job overseas for himself.

The tense political and military stand-off in Ukraine dominated a meeting of Europe’s centre-right parties in Dublin.

Yulia Tymoshenko, Ukraine’s ex-premier freed as the tide turned against her nemesis, president Viktor Yanukovych, is a steely and telegenic figure hailed by the opposition, but also a polarising one dogged by suspicions of personal enrichment and opportunism.

Hours after her release from prison, former Ukrainian Prime Minister and opposition figurehead Yulia Tymoshenko appeared before an ecstatic throng at the protester encampment in Ukraine’s capital today.

At least 25 people have been killed and more than 240 injured during clashes between police and protesters in the Ukrainian capital, health officials said.

Amid cries of “Glory to Ukraine!” and with flaming tyres lighting up the night sky, thousands of riot police armed with stun grenades and water cannons attacked the sprawling protest camp in the centre of Kiev.

At least 13 people, including six police, were killed last night as thousands of police charged into the opposition camp in Ukraine’s capital that has been the epicentre of nearly three months of anti-government protests.

Thousands of police armed with stun grenades and water cannons have clashed with anti-government protesters in the centre of Ukraine’s capital, Kiev, and police say at least 13 people have been killed.

Ukraine’s opposition called for international mediation and appealed for Western financial aid for the first time in their protests against the president Viktor Yanukovych yesterday.

New violence erupted in Ukraine’s capital during the night as a large crowd attacked a government building which had police stationed inside.

Ukraine’s embattled president has offered to make a top opposition leader the prime minister, but it is unclear whether the overture will mollify the radical faction of protesters who have clashed with police for much of the last week.

As riots spread from Ukraine’s embattled capital to nearly half of the country, President Viktor Yanukovych promised yesterday to reshuffle his government and make other concessions.

Ukrainian opposition leaders issued a stark ultimatum to President Viktor Yanukovych to call early elections within 24 hours or face more popular rage.

At least three people have been killed during clashes between protesters and police in the Ukrainian capital.

At least two people have been killed in clashes between protesters and police in the Ukrainian capital.

Anti-government protesters held their ground through a night of violent street clashes in the Ukrainian capital, despite police moving in to dismantle barricades erected in a street leading to government offices.

Anti-government protests in Ukraine’s capital escalated into fiery street battles as thousands of demonstrators hurled rocks and firebombs to set police vehicles ablaze. Dozens of officers and protesters were injured.

Hundreds of protesters have clashed with riot police in the centre of the Ukrainian capital Kiev today, after the passage of harsh anti-protest laws seen as part of attempts to quash anti-government demonstrations.

Tyson Fury and Dereck Chisora have been set on collision course for a stadium showdown in June after Chisora’s promoter Frank Warren announced he has agreed a deal to set up a big-money rematch between the heavyweight pair.

Russian President Vladimir Putin has opened his wallet in the battle with the European Union over Ukraine’s future, saying Moscow will buy $15bn dollars (€10.9bn) worth of Ukrainian government bonds and sharply cut the price of natural gas for its economically struggling neighbour.

Heavyweight champion Vitali Klitschko is to step away from boxing to focus on politics after being appointed ’champion emeritus’ by the World Boxing Council.

The European Union has announced its suspending efforts to reach an association agreement with Ukraine.

Hundreds of thousands of protesters poured into the streets of Ukraine’s capital yesterday, toppling a statue of former Soviet leader Vladimir Lenin and blockading key government buildings in an escalating stand-off with the president over the future of the country.

Thousands of protesters poured into Kiev’s Independence Square last night, the centre of Ukraine’s pro-West Orange Revolution, to demand that the government reverse course and sign a landmark agreement with the European Union.

Tyson Fury recorded his 20th consecutive win in Belfast on Saturday night to edge a step closer to a shot at the WBC World heavyweight title.

Tyson Fury’s camp are touting Croke Park or Old Trafford as possible venues for a world title fight with one of the Klitschko brothers if Fury beats Kevin “Kingpin” Johnson at the Odyssey Arena in Belfast tonight.

There used be a time when Ireland produced heavyweight boxers who shook the world but in the past 100 years that has become a rarity.

Ukraine President Viktor Yanukovych's party claimed victory in an election vote tainted by the jailing of the country's top opposition leader.

David Haye insists only a fight against WBC world heavyweight champion Vitali Klitschko will tempt him back into the ring.

David Haye has ruled out fighting Vitali Klitschko in Ukraine on safety grounds should he get a crack at the WBC heavyweight champion.

Vitali Klitschko ended Manuel Charr's perfect record with a clinical defence of his WBC heavyweight title in Moscow last night.

Amir Khan must think long and hard about his next move after a shocking and brutal defeat by Danny Garcia even left him facing suggestions he should retire.

Vitali Klitschko is unlikely to face David Haye due to his political commitments, according to the Ukrainian's manager Bernd Boente.

Dereck Chisora believes his controversial grudge match against David Haye this Saturday is a matter of pride.

Activists have clashed with riot police in the the Ukrainian capital Kiev over a controversial law that upgrades the status of the Russian language and which critics say would undermine the Ukrainian tongue.

Dereck Chisora and his trainer have both attempted to play down their altercation, which has threatened to disrupt the former’s preparations for his grudge match with David Haye next month.

The controversial bout between David Haye and Dereck Chisora will definitely go ahead, according to organisers, after the Luxembourg Boxing Federation reiterated its support for the fight despite a threat of expulsion from the European Boxing Union.

David Haye has rubbished claims from Vitali Klitschko’s manager he is “afraid” of facing the Ukrainian heavyweight.

David Haye has rubbished claims from Vitali Klitschko’s manager that he is “afraid” of facing the Ukrainian heavyweight.

David Haye will attempt to unify the heavyweight division once more this year after taking care of Dereck Chisora – a man he branded “chubby” and an “idiot” yesterday.

David Haye claims Dereck Chisora has got “a few screws loose” after yesterday agreeing to a very “personal” and controversial grudge match against the unpredictable British heavyweight.

Frank Warren has defended his decision to pit Dereck Chisora against David Haye in a heavyweight grudge match.