In a letter to the 55 federations in UEFA, president Aleksander Ceferin wrote that any league cancelling its season would need to produce a list of teams that have qualified for European club competitions, also by May 25.
A summary of Thursday's Europa League quarter-finals second-leg.
The decision followed talks with Greek authorities, UEFA said.
Paris St Germain, who were declared Ligue 1 champions, are looking to play their Champions League games abroad after the French government said professional sports would not be allowed to return before September.
European football governing body UEFA has invited Denmark international Christian Eriksen and the paramedics who helped save his life during an on-field cardiac arrest to attend the Euro 2020 final at Wembley on Sunday.
IMAGES from the Premier League matches played on Sunday.
On Sunday the Ukrainian Tennis Federation urged the sport's governing body the International Tennis Federation (ITF) to immediately expel Russia and Belarus from the organisation and ban Russia from team and individual tournaments. Also, athletes from Ukraine and other nations have called on the International Olympic Committee (IOC) to suspend Russia and Belarus and ban their athletes from events immediately.
UEFA announced in a statement that City had committed "serious breaches" of the rules while the Premier League club swiftly said on their website that they will appeal the decision to the Lausanne-based Court of Arbitration for Sport (CAS).
The medical staff who saved Denmark midfielder Christian Eriksen's life at the European Championship in June are set to receive the UEFA President's Award, Europe's soccer governing body said on Tuesday.
North Macedonia ask UEFA to probe Austria's Arnautovic's goal celebration during their Euro 2020 match on Sunday. The 32-year-old Marko Arnautovic, who has Serbian background, apologised on Monday for his reaction towards North Macedonia fans but denied he had using racist language towards them.
In the latest of a slew of sanctions against participating countries for fan misbehaviour, UEFA also fined the English Football Association 10,000 euros for crowd disturbances and 1,000 euros for lighting of fireworks during the Slovakia game.
UEFA opened an investigation into a "wolf salute" goal celebration by Turkey centre back Merih Demiral which Germany condemned as racist due to its far right associations.
The 20-year-old was the fourth Indian woman footballer to sign for an overseas club when she landed a multi-year contract with Cypriot top division winners Apollon Ladies.
The Euro 2020 soccer Championship, trumpeted as a continent-wide feast of football from Dublin to Baku to mark UEFA's 60th anniversary, was postponed for a year on Tuesday as the coronavirus pandemic claimed its biggest sporting casualty yet. Europe's flagship tournament, staged every four years and second only to FIFA's World Cup in terms of prestige in soccer, will now be staged from June 11 to July 12, 2021.
UEFA president Aleksander Ceferin, who followed FIFA president Gianni Infantino to the podium, directly compared UEFA's revenue to FIFA and the International Olympic Committee (IOC).
Yildiz gave Juve the lead after 21 minutes with a stunning curling shot from just inside the box, leaving goalkeeper Joel Drommel helpless as the ball went in off the inside of the post.
UEFA bowed to the inevitable on Wednesday and suspended all Champions League and Europa League matches 'until further notice' due to the coronavirus pandemic.
The European football federation (UEFA) said it was "disappointed" in FIFA's decision today to ban Michel Platini for eight years over an ethics violation, expressing support for the Frenchman's right to an appeal, according to AFP.
UEFA had banned City from European competition for two years after ruling they had breached Financial Fair Play (FFP) regulations but City won an appeal last month to have that verdict and sanction overturned.
The Court of Arbitration for Sport (CAS) said on Tuesday it had upheld PSG's appeal against UEFA on the grounds that the body took too long to review its own decision to clear the French champions of breaking Financial Fair Play (FFP) rules.
Turkey defender Merih Demiral is to be banned for two games by UEFA following a gesture he made during his side's last-16 win against Austria on Tuesday and will miss Saturday's Euro 2024 quarter-final against Netherlands, German media reported.
A round-up of Wednesday's UEFA Champions League last-16 first leg matches.
A round-up of the UEFA Champions League last-16 first leg matches played on Tuesday.
Dinamo Zagreb and Celtic played out a lifeless 0-0 draw in the Champions League on Tuesday, with Celtic keeper Kasper Schmeichel producing the match's memorable moment with a late save.
French club Paris St Germain have been placed under investigation by UEFA to see if their recent transfer spending spree has broken the break-even rules of European soccer's ruling body known as Financial Fair Play (FFP).
The Turkish FA was fined a total of 80,000 Swiss francs after a series of violent incidents at two international matches last month.
A summary of Wednesday's action in the UEFA Champions League Knock-out phase play-offs.
Real Madrid duo Cristiano Ronaldo and Gareth Bale are in the running with Atletico Madrid striker Antoine Griezmann for the UEFA Best Player in Europe Award.
A summary of Tuesday's action in the UEFA Champions League Knock-out Phase play-offs.
The coveted UEFA Champions League trophy will be on display at an exclusive fan event to be hosted by Portugal legend and tournament Ambassador Luis Figo, in Mumbai, on Friday.
IMAGES from the UEFA Nations League matches played on Monday.
UEFA says decisions over whether to cancel matches due to the coronavirus, will be made by governments and health authorities and not the game's ruling organisations.
The UEFA president said that without a second-leg to fall back on, teams have been forced to go for goals.
UEFA reprimanded Pierluigi Pairetto after telephone taps showed he had leaked confidential information on a Champions League game
'We do have to examine new mechanisms like luxury taxes and in particular sporting criteria like squad limitations and fair transfer rules, to avoid player hoarding and excessive concentration of talent within a few teams' The last few years have seen the increasing dominance of a few elite clubs like Real Madrid, Barcelona and Bayern Munich.
'Football Leaks' documents, showing the two clubs had inflated sponsorship revenues to meet the requirements, were obtained by the German publication Der Spiegel.
UEFA have postponed a meeting due to be held on Saturday to discuss the crisis at FIFA which led to Sepp Blatter saying he would step down as president of world soccer's governing body.
Swiss federal prosecutors are targeting former European football head Michel Platini in a widening of their probe into a 2 million Swiss franc ($2.1 million) payment arranged by former FIFA president Sepp Blatter, the Office of the Attorney General (OAG) said on Friday. Swiss prosecutors have been probing Blatter over accusations he arranged a payment of two million Swiss francs ($2.06 million) from FIFA to then UEFA president Platini in February 2011.
The recently-announced changes to the Champions League are detrimental to domestic football in Europe and will increase the gap between the wealthiest clubs and the rest, Europe's domestic football leagues (EPFL) said on Thursday.
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