The centre-back has not played since Sarri took over from Antonio Conte at the start of the season, and says he could call time on his career at Stamford Bridge when the transfer window reopens if his situation does not improve.
Goals by Burak Yilmaz and Ozan Tufan gave Turkey a 2-0 win over Czech Republic in Euro 2016 on Tuesday that secured third place in Group D and kept alive their hopes of reaching the tournament's knockout stages.
Chelsea were held to a goalless draw at neighbours Fulham on Monday and a disappointing night for the Premier League champions would have been even worse but for a stoppage-time penalty save by goalkeeper Petr Cech.
Midfielder Frank Lampard could miss champions Chelsea's Premier League opener at home to West Bromwich Albion on Saturday.
Chelsea suffered a shock defeat and their first home loss in the Premier League this season when Sunderland beat them 3-0 thanks to goals from Nedum Onuoha, Asamoah Gyan and Danny Welbeck on Sunday.
Phil Neville scored the decisive spot kick to give Everton a 4-3 penalty shootout win over holders Chelsea after their FA Cup fourth-round replay ended in a 1-1 draw after extra time at Stamford Bridge on Saturday.
Everton skipper Phil Neville scored the decisive spot-kick to give his side a 4-3 penalty shoot-out win over holders Chelsea after their FA Cup fourth-round replay ended in a 1-1 draw after extra-time at Stamford Bridge on Saturday.
Chelsea moved 12 points clear of Arsenal, who suffered their fourth defeat in nine league matches, while fourth-placed Liverpool fell 13 point adrift after their wretched 2017 continued with a shock 2-0 defeat at resurgent Hull City.
Spain huffed and puffed, making hard work of their Euro 2016 opener before a late Gerard Pique goal blew away the CzechRepublic resistance -- yet it could not conceal further evidence that Vicente del Bosque's champions may lack a killer instinct.
Tottenham Hotspur overcame a worrying injury to talismanic striker Harry Kane to beat mid-table Bournemouth 4-1 with a Son Heung-min double and goals from Dele Alli and Serge Aurier to move up to third in the Premier League.
Chelsea's Petr Cech was named the best goalkeeper from last season's tournament.
Barcelona's Lionel Messi broke free from Arsenal's shackles to score two late goals and put the Champions League holders on the brink of the quarter-finals with a clinical 2-0 victory at the Emirates Stadium on Tuesday.
Defender Branislav Ivanovic headed two goals from corners and Didier Droga added the third to give Chelsea a 3-1 away win over Liverpool in the first leg of their Champions League quarter-final on Wednesday.
Italian goalkeeper Carlo Cudicini joined Tottenham Hotspur's relegation fight on Monday, leaving Chelsea on a free transfer after 10 years at Stamford Bridge. The 35-year-old, once voted the best goalkeeper in England but second choice to Petr Cech for the last five years, could make his debut for Tottenham on Tuesday at home to Stoke City.
Lampard was handed a three-year contract having left second tier Derby County.
Chelsea must add a new dimension to their brand of football if the champions are to mount a strong defense of the Premier League title they won in some comfort last season, said manager Jose Mourinho.
A full-strength Arsenal added another piece of silverware to their recent FA Cup success by beating Everton 3-1 in the final of the Premier League's Asia Trophy on Saturday.
Arsenal missed the chance to heighten the congestion at the top of the Premier League and suffered fresh injury blows when a frustrating 1-1 draw at Norwich City failed to take them alongside leaders Manchester City and Leicester City on Sunday.
Manchester United goalkeeper Edwin van der Sar set an English record for time without conceding a goal during their 1-0 Premier League win against Everton at Old Trafford on Saturday. The Dutchman, who beat Chelsea keeper Petr Cech's 2004-05 Premier League record last week, moved past the all-league best of 18 hours, 23 minutes set by former Reading keeper Steve Death over two seasons during 1978 and 1979.
Bayern Munich dismantled Arsenal 5-1 in UEFA Champions League Group F on Wednesday after a sensational first-half performance to close on the knockout stages with two matches left.
Eden Hazard scored twice and created a third to steer Chelsea to a 4-1 victory over London rivals Arsenal in the Europa League final in what looks likely to be the Belgium winger's final game for the Blues.
Chelsea came from behind to beat Leicester City 3-1 on Wednesday and move to within one win of clinching the Premier League title for the first time in five years.
Ten days ago John Terry was carried off the pitch with a dislocated shoulder but that will be nothing compared with the pain he will be feeling after missing the chance to win the Champions League for Chelsea.
Liverpool and Chelsea drew 1-1 in the first leg of their Champions League semi-final at Anfield on Tuesday after a stoppage-time own goal from the home side's John Arne Riise. Dutchman Dirk Kuyt gave Liverpool the lead after 43 minutes.
Tottenham Hotspur defender Jonathan Woodgate scored the winning goal in extra-time as the north London upset the defending champions.
Stirling Moss, the British racing driver who ranked as one of the all-time Formula One greats despite never winning the world championship, died on Sunday at the age of 90 after a long illness. News of his passing was mourned across the world of motorsport, with Formula One hailing a 'legend' and 'one of the true greats'.
Second-half goals from Leroy Sane and Raheem Sterling stunned Arsenal at the Etihad Stadium on Sunday as Manchester City came from behind to win 2-1 and move seven points behind leaders Chelsea.
John Terry embellished his status to Chelsea fans as "captain, leader, legend" by scoring the goal that set his side on the way to a 2-0 win over Tottenham Hotspur in the Capital One Cup final at a rain-sodden Wembley on Sunday.
News of all that's transpired on and off the football field
Cristiano Ronaldo feared his penalty miss in Wednesday's Champions League final shootout would be the worst moment of his life.
'Now even winning our games does not guarantee us to be in the Champions League, that is what we have to achieve'
The Chelsea captain said he should be fit for the Champions League final after he suffered an arm injury in the final league game.
Manchester United and Chelsea drew 0-0 in the Premier League on Monday as the action in the season's first big match failed to match the intrigue of the Wayne Rooney transfer saga that swirled throughout.
The result took Arsenal on to 40 points from 17 games, one ahead of Manchester United, who briefly went top earlier in the day after winning 1-0 at Liverpool.
Photos from the English Premier League matches played across England on Wednesday
John Terry became the second Chelsea player this year to make 100 appearances in the Champions League when he captained his side against Sporting Lisbon in their Group G match in Portugal on Tuesday.
Chelsea came from a goal down to claim a 2-1 victory away to Valencia.
Lisandro Lopez gave leaders Porto a 1-0 victory over second-placed Maritimo to make it four wins from their first four games as they moved three points clear in the Portuguese Premier League on Saturday.
The Premier League champions had been aiming for a double in the first final to be staged at the re-built Wembley Stadium and thought they had scored in the first half of extra time.
The Premier League leaders suffered their third defeat of the season.