Tuchel has agreed an 18-month contract with the option of another year, the west London club announced.
IMAGES from the English Premier League matches played on Wednesday.
Earlier on Wednesday, Reuters reported that Swiss business tycoon Hansjoerg Wyss is considering buying football club Chelsea from Abramovich, Wyss told Swiss newspaper Blick as British lawmakers continued to push for sanctions against the billionaire.
Images from the English Premier League matches played on Sunday.
IMAGES from the English Premier League matches played on Sunday
A summary of Sunday's action in the Premier League.
Defeat would have left Arsenal nine points behind Liverpool, who also have a game in hand, but the way they reacted to going behind suggests they can still be a factor in the title race.
Champions Manchester City could only muster a 2-2 Premier League draw with Brighton & Hove Albion on Saturday.
In a thriller at Anfield, a weakened Liverpool side came back from the brink to beat Leicester City on penalties after a 3-3 draw, setting up a semi-final against Arsenal.
A round-up of Wednesday's action in the UEFA Champions League.
IMAGES from the EPL matches played on Saturday
Chelsea's inability to score a second goal proved costly as Karim Benzema's effort levelled things up
A magnificent long-range strike from Youri Tielemans gave Leicester City their first FA Cup triumph with a 1-0 victory over Chelsea at Wembley on Saturday, in front of the biggest crowd in England since March 2020.
On a seismic day in the history of Chelsea, Romelu Lukaku scored the winning goal in a 3-2 FA Cup fifth-round victory
Images from the UEFA Champions League matches on Tuesday night.
Thomas Tuchel arrived at Stamford Bridge in January on an initial 18-month deal with the possibility of an extension, which was granted six days after he led Chelsea to Champions League glory.
Postecoglou moves a step closer to making good on his reputation for securing silverware in his second season at clubs and delivering a first cup for Spurs since they won the League Cup in 2008.
Gerard Moreno -- who scored against Manchester United before the Europa League final in Gdansk went to penalties -- rescued Unai Emery's side in the 73rd with a side-foot finish after a back-heel from Boulaye Dia.
A round-up of Tuesday's action in the UEFA Champions League.
Manchester City took a major step towards retaining their Premier League title with a 1-0 win over second-placed Chelsea on Saturday, opening up a 13-point lead at the top of the table for Pep Guardiola's side.
The three Premier League and three La Liga clubs in the last eight avoided each other, with Manchester City up against Atletico Madrid and Liverpool to face Portuguese side Benfica.
Premier League champions Manchester City were drawn on Thursday with Juventus, Wydad AC and Al Ain in Group G for next year's FIFA Club World Cup in the United States.
IMAGES from the English Premier League matches played on Saturday
Holders Chelsea made light of their off-pitch problems to reach the Champions League quarter-finals by beating Lille 2-1 away on Wednesday to complete a 4-1 aggregate victory.
Thirteen-times European champions Real, who had come through each of their last three Champions League semi-final ties, had been second best for much last week's first leg which ended 1-1.
Chelsea beat Sheffield United 2-0 to reach the FA Cup semi-finals for the fourth time in five seasons.
Images from Saturday's Premier League matches.
Images from Sunday's action in the Premier League.
Some 16,500 fans were allowed into the stadium but many others travelled to the Portuguese city of Porto to support their teams from the sidelines.
An underwhelming Chelsea boosted their chances of a spot in next season's Champions League, overcoming a slow start to beat relegated Norwich City 1-0 at Stamford Bridge on Tuesday. Olivier Giroud scored with virtually the last touch of the first half as Chelsea consolidated third place in the Premier League and moved four points above Leicester City and Manchester United in the battle for a top-four finish.
The 32-year-old, linked with a move across town to Arsenal, posted a farewell letter to the club's fans on Twitter.
Chelsea slipped up in their push for a Champions League spot when they lost 1-0 at home to Arsenal in the Premier League on Wednesday with Emile Smith Rowe's first-half goal settling the London derby after a defensive mix-up by the hosts.
Guardiola said the expanded Club World Cup would make it even more difficult for clubs to manage player workload.
Jorginho's first-half penalty earned Chelsea a 1-0 victory over Tottenham Hotspur in the Premier League on Thursday.
Chelsea paid a heavy price for a 3-2 defeat at West Ham United as first Liverpool, then Manchester City, leapfrogged them in the English Premier League title race on Saturday, with City ending the day on top for the first time this season.
Twelve months ago Liverpool were ripping up the record books on the way to their first English top-flight title for 30 years but defeat by Everton on Saturday left them mulling a host of far less flattering statistics.
Images from Monday's action in the Premier League.
Chelsea beat Manchester City 1-0 on Saturday to book a place in next month's FA Cup final, thanks to a second-half goal by Hakim Ziyech which ended City manager Pep Guardiola's dream of steering his side to an unprecedented quadruple of titles.
Chelsea are banking on a lavish shopping spree to give them more bite up front and much-needed solidity in defence after coach Frank Lampard spent last season relying heavily on a crop of inexperienced home-grown players.
"Chelsea Football Club and Antonio Conte have parted company," the London outfit said on their website.
