The Brazil defender's current Blues deal expires at the end of the season, with the 32-year-old having been in protracted talks with the club over an extension.

Luiz's error led to Luka Jovic's goal as Eintracht Frankfurt took the Blues all the way to penalties in Thursday's Europa League semi-final second leg at Stamford Bridge.

But the centre back then blasted home emphatically from the spot with Eden Hazard firing the decisive penalty to book Chelsea's Europa League final showdown with Arsenal.

His new deal was quickly announced, with Chelsea saying Luiz has "enjoyed a fine season".

After helping Maurizio Sarri's men inch into the May 29 all-English clash in Baku, Luiz revealed he was close to finalising new Stamford Bridge terms.

Asked at the time if he would be at Chelsea next season, Luiz said: "Yes I think so. Soon everybody is going to know. It will be before the Europa League final, in five days.

"I love this club. My great moments in football were here, especially the European titles - the Champions League and Europa League.

"My relation with the fans has always been great since the first day I played here. I just try to do my best and make them happy.

"Nobody wants to play in an empty stadium when you have an opportunity to understand that we play for them."

After signing the deal, he added: "I am so happy to be here and have this opportunity to stay."

Australian Associated Press