UEFA president Aleksander Ceferin said they were committed to "qualification based on sporting merit".
Juventus have 13 points from seven games, three behind leaders AC Milan who host Verona later on Sunday. Lazio have 11 points.
Ferran Torres scored a brace and Ousmane Dembele made two assists as a red-hot Barcelona rolled over Osasuna 4-0 on Sunday to earn their fourth consecutive LaLiga win.
The training centre will be closed until Monday and another screening session will be carried out on Friday.
Lionel Messi's early goal earned Paris St Germain a 1-0 win at Olympique Lyonnais on Sunday as they opened a two-point lead at the top of Ligue 1.
He acknowledged that police had been caught off-guard by local delinquents who turned up to cause trouble at the match. But defending the security protocols in place, the minister said France had only had three months to prepare after the venue was moved from Russia.
The 34-year-old Argentine joined PSG on a two-year contract with the option of extending it by another year after Barcelona made it clear they could not afford to keep him because of LaLiga's financial fair play rules.
News of all that's transpired on and off the football field
'I was told Doctor Gonzalez had left a note in which he mentioned that he had tested positive for COVID-19'
Real Madrid forwards Marco Asensio and Karim Benzema struck to give their side a 2-0 win at home to Eibar in La Liga
Bayern Munich conceded a stoppage-time equaliser through VfB Stuttgart striker Serhou Guirassy from the penalty spot for a 2-2 on Saturday, the champions' third consecutive Bundesliga draw.
The Argentine striker had hosted a team meeting on Monday to kick start preparations for the clash against Atletico Madrid.
Mauricio Pochettino, who played for PSG as a defender in the early 2000s and also captained the side, has been out of a job since being dismissed by Spurs in November 2019.
Images from soccer matches played across different leagues in Europe on Sunday
Paris St Germain players Angel Di Maria and Marquinhos were robbed during their club's Sunday home game against Nantes, French sports daily L'Equipe said, adding members of their families were held hostage during the events.
Paris St Germain completed a domestic treble as they beat Olympique Lyonnais 6-5 on penalties to lift the French League Cup on Friday with the match ending in a 0-0 stalemate after regular and extra time. Second-half substitute Pablo Sarabia scored PSG's final penalty in the shootout after goalkeeper Keylor Navas had saved Bertrand Traore's spot kick to give the Ligue 1 champions and French Cup winners their ninth League Cup trophy.
Stephanie Frappart made history by becoming the first female to referee a men's UEFA Champions League match.
Man United were mistakenly drawn with Villarreal, even though both teams had already faced each other in the group stage.
Although players have been allowed to start individual training, Italian Sports Minister Vincenzo Spadafora said it is too early to talk about the resumption of football season.
Real Madrid dug deep in a 3-0 home win against lowly Alaves in the La Liga, but Ligue 1 leaders Paris St Germain their second Ligue 1 loss of the season.
Paris St Germain will look at playing Champions League home matches in another country after the French government on Tuesday decided to end the 2019-20 domestic season, the Ligue 1 club's president Nasser Al-Khelaifi said on Tuesday.
Paris St Germain forward Neymar has said he was the target of a racist slur during the French champions' 1-0 defeat by Olympique Marseille on Sunday.
Inter Milan got a crucial 1-0 win at Juventus on Sunday
When Barca and Neymar were at the peak of their powers in 2017, however, he shook world football by heading to PSG for a record-smashing 222 million euros ($269.89 million).
Paris St Germain suffered their first defeat of the season when they were beaten 2-0 at Stade Rennais on Sunday to drop their first Ligue 1 points of the season.
Sporting director Leonardo Araujo, back for a second stint in the role, has said the Brazilian can leave if a buyer is found.
A late Mauro Icardi strike earned Paris St Germain a last-gasp 2-1 home victory against Olympique Lyonnais with Lionel Messi making limited impact on his Parc des Princes debut on Sunday.
Images from Sunday's action in La Liga, Serie A and Ligue 1.
Antoine Griezmann scored two goals and provided two assists as Barcelona staged a stunning last-gasp comeback before beating Granada 5-3
Villa manager Gerrard to sit out two games after positive COVID test.
Brescia left Mario Balotelli on the bench after coach Fabio Grosso said the maverick striker had not put in enough effort in training during the week.
He will not be available for Sunday's game against Chelsea as Arsenal are awaiting visa clearance, the club said.
This is the first time that PSG is featuring in the finals of the Champions League.
News of all that transpired on and off the football field.
'It could have been worse, but once again God spared me something more serious.'
PSG's Neymar out until at least mid-November says Tuchel
PSG make winning start as Messi arrival looms
Images from the matches played across football leagues in Europe on Sunday.
Goals in each half from Kai Havertz and Christian Pulisic earned defending champions Chelsea a solid 2-0 first-leg victory over Lille in the Champions League last 16 on Tuesday.
Mario Balotelli has been banned for two games after being sent off near the end of Nice's 0-0 draw with Girondins de Bordeaux on December 21, Ligue 1's disciplinary said on Thursday.