Much of the night's drama happened at the Wanda Metropolitano in the Spanish capital where Mohamed Salah scored another impressive goal, twisting away from a string of Atletico defenders before his shot deflected in off James Milner to open the scoring.
On Monday, World Cup winner Mbappe said he had told Paris Saint-Germain he wanted to leave the French capital last July, a month before Madrid bid 180 million euros ($209 million) for him -- an offer PSG turned down.
Real Madrid remain unbeaten this term, having now won five and drawn one of their first six matches in all competitions under returning coach Carlo Ancelotti.
A dramatically increased proposal from the record 13-time European champions could possibly even see Mbappe replace Parisian team-mate Neymar, who moved to the French capital from Barcelona for 222 million euros in 2017, as the world's most expensive player.
Ronaldo has been the subject of a series of rumours about his future this summer.
No fee has been disclosed but British media reported value the deal at £34 million ($47 million) rising to £48 million with add-ons.
Mbappe, who joined PSG in 2017, is about to enter the final season of his contract in the French capital with speculation linking him with a move to Real Madrid.
The announcement follows an injury-wracked 2020/21 campaign where the 35-year-old Ramos appeared in only 21 games in all competitions, his fewest in a 16-year career at Madrid. He has played just five times since the start of the year.
It took less than a week for Real Madrid to turn the page on Zidane, who ended his less succesful second spell as coach, last Thursday, criticising the lack of confidence shown in him by the club hierarchy.
Zinedine Zidane resigned as Real Madrid manager because he felt the Spanish club no longer had any confidence in him, he wrote in an open letter on Monday.
The Frenchman's departure comes at the end of a disappointing campaign for the 13-time European champions, who also lost to Chelsea in the Champions League semi-finals as they failed to win a trophy for the first time in 11 seasons.
The Frenchman's reported departure comes at the end of a disappointing campaign for the 13-time European champions, who also lost to Chelsea in the Champions League semi-finals as they failed to win a trophy for the first time in 11 seasons.
If they beat Real Valladolid on Saturday, they will be crowned champions for the first time since 2014 and few could argue given they will have been top of the table since December.
Atletico could still be crowned champions this weekend if they overcome Osasuna and Real Madrid fail to win away at Athletic Bilbao but the Spanish title race has been full of surprises and still nothing is guaranteed.
The three clubs said they had received "unacceptable" threats from Uefa and Fifa since the project collapsed just two days after it was announced last month, when six Premier League clubs and three other teams pulled out.
The Blues should have ran out far more convincing winners as they toyed with the tired visitors in the second half.
Christian Pulisic grabbed Chelsea a deserved away goal in a soaking wet contest at Valdebebas but they might regret not pulling away, with the struggling Timo Werner again missing a golden chance.
UEFA threatened the clubs with 'consequences' before the plans fell apart, but Zidane said any thoughts of a Champions League ban were misplaced.
