We reached a general agreement with Manchester United on the transfer of Jadon Sancho, pending full completion, as there are still some formalities to agree on and the medical check to be completed.
Messi's current contract expires at the end of June and he is free to discuss a move to another club, but media reports on Tuesday suggested an agreement was imminent.
"Talks are ongoing with Messi's people and, as I said, they're going well. We hope to keep making progress. It's not done but we know that Leo wants to stay.
Around 40 flights from England were expected in Porto during the day, with the first fans having arrived.
"Hopefully that plane is bouncing on the way back," said Manchester City fan Neal who travelled to Porto with his father and will head back home in the early hours of Sunday on a charter flight. "It's a great atmosphere."
Asked at the pre-match news conference what it was like to have to break his selection news to the players, Guardiola said: "Terrible. It's absolutely disaster, don't be a manager in your life."
The Spaniard said there were no words that he could conjure up to ease the pain for the players concerned.
His second tenure was fraught with tension, which came to a head in an unusually fiery press conference in February when he demanded more respect for his team.
The one marquee signing the club made in Zidane's second spell was Eden Hazard, who has been unable to shine due to a hapless run with injuries.
Juve's Champions League hopes are no longer in their hands as they head for 11th-placed Bologna needing a win and hoping rivals Napoli and AC Milan slip up.
England captain Kane's future at Tottenham has been the subject of intense speculation with the club failing to qualify for next season's Champions League.
"I'd be lying if I said I didn't (want the Premier League record), I think if I get to the end and I haven't broke that record and the Wayne Rooney England record (53 goals) then I'd probably be a little disappointed in myself," he said.
Aguero has won 12 major trophies with City -- including the club's first Premier League title in 2011-12 when he scored an injury-time winner on the final day of the season.
"Tomorrow we'll decide," Guardiola added. "As much he can play he will play. He's been disrupted, he had a partial training session."
Gian Piero Gasperini's side have 78 points, six more than fifth-placed Juventus who have two games remaining, but they are guaranteed to finish ahead of the Turin club thanks to a better head-to-head record.
Atalanta will finish as runners-up in Serie A if they beat Milan at home on the final day of the season next Sunday, marking their highest finish ever.
"There are no concerns. We trust the authorities, we were not in danger last time," Klopp told a news conference. "I have no idea what happens tomorrow but I am not concerned."
"Our plan was to win all the games," he said. "But do we have to take more risks? Possible but it's not planned. If you play a game and think only about attacking, you have lost before the first whistle."
A statement from the Portuguese league said stadiums would be at 10% capacity for the games on May 19. Fans wishing to attend will have to present a negative COVID-19 test before entering the stadium.
The news also came ahead of an expected announcement on Porto's Dragao stadium hosting the Champions League final on May 29.
The 29-year-old Neymar, who joined PSG in 2017 from Spanish club Barcelona for a record transfer fee of 222 million euros ($270 million), has agreed a deal French media reported will earn him an annual salary of 30 million euros.
"I'm very happy to be extending my contract with Paris until 2025," Neymar told.