Costa, the Premier League's leading scorer with 14 goals, will miss Saturday's game following a disagreement with Chelsea manager Antonio Conte and a club fitness coach Julio Tous, the reports say.
Leicester City's traumatic week ended with a 1-0 win at Cardiff City although the result was never the chief concern on a day when the tributes flowed for the Midlands club's late owner Vichai Srivaddhanaprabha who died in a helicopter crash.
Pep Guardiola hailed Sergio Aguero's 'unique' skill of sniffing out chances in front of goal, and David Silva's ability to ghost past defenders
Lacazette fired the Gunners ahead in the eighth minute after poor defending by the home side before new signing Gabriel made it 2-0 in the 49th and Aubameyang put the icing on the cake with a superb shot into the top corner.
City's Aguero doubtful starter for Watford trip
News of all that's transpired on and off the football field.
West Ham United's hopes of avoiding relegation suffered a cruel blow as an own goal by midfielder Tomas Soucek and Harry Kane's first goal since December condemned them to a 2-0 defeat at Tottenham Hotspur on Tuesday.
Manchester City striker Sergio Aguero has been banned for three matches after being found guilty of violent conduct, the Football Association said on Friday.
Third-placed Leicester go to Hodgson's sixth-placed Crystal Palace on Sunday
Liverpool substitute Adam Lallana struck deep into stoppage time to snatch a 5-4 win over shell-shocked Norwich City in an extraordinary Premier League game at Carrow Road on Saturday.
Eight wins and a draw in their last nine games had seen Leicester emerge as the closest pursuers of runaway leaders Liverpool but they went down 3-1 at the Etihad despite taking an early lead through Jamie Vardy. Images from the English Premier League matches played on Saturday.
Be ready to be amazed as Rediff.com encapsulates all the sporting action from the past week in this super photo feature.
The next man in charge faces an unenviable task trying to sort out the existing mess and then living up to goals that seem ever more distant.
Is VAR sucking the life out of the game?
A preview of the line-up action in the English Premier League
Under-pressure Everton manager Roberto Martinez enjoyed some respite as his struggling side won for the first time in eight league matches.
Chelsea may still take their case to the Court of Arbitration for Sport, as other clubs have done in the past.
News of all that's transpired on and off the football field
Images from the English Premier League matches played on Saturday.
IMAGES from EPL match played between Manchester City and Chelsea on Sunday
Rediff.com brings a preview of the main matches coming up this weekend in the English Premier League.
IMAGES from the English Premier League match played between Everton and Manchester City on Wednesday
List of major transfers in the top Premier League ahead of the 2019-20 season (all transfer fees as reported by British media):
Chelsea manager Antonio Conte gave short shrift to media reports linking him with a move away from the English Premier League leaders and said he was eager to build "something important" at Stamford Bridge.
Manchester United suffered their most embarrassing FA Cup defeat for 26 years when Leeds United pulled off a stunning 1-0 third-round victory at Old Trafford on Sunday.
IMAGES from the English Premier League match played on Saturday
Arsenal's new manager Unai Emery faces a baptism of fire after the Gunners were handed an opening day fixture at home to Premier League champions Manchester City.
ManchesterCity could be without playmaker David Silva for Saturday's home game against Bournemouth while midfielder Ilkay Guendogan may make his Premier League debut.
Manchester United's unbeaten start to the Premier League has helped the club build momentum before the derby clash against ManchesterCity, striker Wayne Rooney has said.
A club of Manchester United's stature should be vying for silverware on all fronts, midfielder Ander Herrera said, adding that a win in the FA Cup final against Crystal Palace on Saturday would raise spirits after a poor season. Louis van Gaal's men, who finished fifth in the Premier League this campaign, failed to qualify for the Champions League for a second time in three seasons and hope to win their first trophy since taking home the Community Shield in 2013. "We have to be realistic. United should be fighting for every title. We didn't do that with the Champions League," Herrera told British media. "We didn't do that with the Premier League. So we have two options. Firstly, feel sorry for ourselves. Or, secondly, get this trophy for the fans, for our club and for ourselves."
Manchester City manager Pep Guardiola has done little to quell the uncertainty surrounding Sergio Aguero's future at the club, saying that he is unsure where the mercurial Argentine striker would be plying his trade next season.
There will be no seismic shifts in the balance of the world's richest football competition if the first weekend of the new Premier League season is anything to go by.
Jose Mourinho has confirmed that record signing Paul Pogba is ready to make his second Manchester United debut when Southampton visit Old Trafford in the Premier League on Friday.
Striker Sergio Aguero says he is eager to win back his place in ManchesterCity's starting line-up and it will be up to the Premier League club to decide whether to keep him once the season ends.
More cases of international credit card fraud with links to India have come to light in Britain, even as authorities refused to rate the problem from Indian cities as very high.In a latest incident, a British journalist discovered that money was withdrawn from his bank account in Chennai this week, while nearly 500 others in Bournemouth suffered the same fate.
Under-fire Jose Mourinho had been on the verge of delivering the perfect response to his critics on Saturday with Manchester United closing in on a second consecutive comeback win, at the home of his old club Chelsea to boot.
The victory puts the pressure back on title rivals Liverpool who are at Cardiff City on Sunday and trail by a point with each side having played 34 games.
Surprise leaders Leicester City face a severe test of their Premier League title credentials over the next 10 days, starting with Saturday's trip to Manchester City.
Manchester United have been rejuvenated under new manager Jose Mourinho and are poised to mount a strong challenge for the Premier League title, skipper Wayne Rooney has said. The 30-year-old forward, who secured his fifth league title with the club the last time they won it in 2013, scored eight top flight goals last season as United finished fifth and failed to qualify for the Champions League.