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Sergio Aguero is likely to be out of action for a minimum of six weeks, according to a doctor of the Argentina national team.
The Manchester City striker broke his rib in a car crash while returning home from a concert in Amsterdam last Thursday and missed his side’s 1-0 victory at Chelsea the following weekend.
After carrying out assessments of Aguero’s injury, City were hopeful that he would only be out of contention for two to four weeks.
Show all 23 1 /23Chelsea vs Manchester City player ratings Chelsea vs Manchester City player ratings Thibaut Courtois - 4 Horrendous mistake for the first goal, completely mistiming his punch. Was solid in every other part of his game but matches of this magnitude are often won and lost on the small details.
Chelsea vs Manchester City player ratings Branislav Ivanovic - 6 Terrible first half performance that included three terrible errors that, fortunately for Chelsea, went unpunished. Made up for that with a brilliant pass to find Hazard for the goal and was much better after half-time.
Chelsea vs Manchester City player ratings John Terry - 7 Made one bad error when he got underneath a long ball to allow Aguero through on goal but again proved he is the best English defender out there.
Chelsea vs Manchester City player ratings Kurt Zouma - 8 Still has huge room for improvement but the 20-year-old has all the tools to become one of the very best in the world. Deserves to be keeping England's first-choice centre-back on the sidelines.
Chelsea vs Manchester City player ratings Cesar Azpilicueta - 5 Jesus Navas had the better of his compatriot all evening. Azpilicueta was beaten in a way Chelsea fans have not often seen.
Chelsea vs Manchester City player ratings Nemanja Matic - 8 Stepped up his game in the absence of Fabregas to put in a complete midfield performance. Truly great on and off the ball, the giant Serbian was the best player on the park.
Chelsea vs Manchester City player ratings Ramires - 7 Held his position well as the holding midfielder and only made the occasional burst forward, Ramires was very good but its hard to argue that the Blues missed the wizardry of Cesc Fabregas.
Chelsea vs Manchester City player ratings Willian - 5 Hassled and harried his way through the 90 minutes, Willian was excellent in the defensive and middle thirds of the field but produced little to nothing in areas where he could do damage. Set-pieces delivery was also poor.
Chelsea vs Manchester City player ratings Oscar - 6 Another who failed to produce in the final third, Oscar played deeper than he has done for the most part this season which blunted his effectiveness
Chelsea vs Manchester City player ratings Eden Hazard - 6 Brilliant in the first 45, causing all sorts of problems for Bacary Sagna but was extremely quiet after the break as City closed off the space around the dangerous Belgian.
Chelsea vs Manchester City player ratings Loic Remy - 7 Was brilliant in the lone striker role, holding the ball up well to bring his team-mates into the game. Great movement to find space for the goal, it was a shame for Chelsea that the trio behind him starved the striker of service.
Chelsea vs Manchester City player ratings Joe Hart - 6 Nothing he could do about the goal and was hardly tested otherwise by the home side. Looked reasonably solid throughout, bar one dodgy kick.
Chelsea vs Manchester City player ratings Bacary Sagna - 6 Struggled in the first half against Hazard but grew into it as it went on, to snuff out the Hazard threat. Combined excellently with Jesus Navas. Lost Hazard for the goal.
Chelsea vs Manchester City player ratings Vincent Kompany - 7 Defender manfully, though he wasn't always the most comfrotable in possession. In truth, Chelsea didn't offer much threat.
Chelsea vs Manchester City player ratings Martin Demichelis - 7 Had an excellent match but went to sleep to allow Loic Remy to steal into yards of space for the goal.
Chelsea vs Manchester City player ratings Gael Clichy - 8 Didn't put a foot wrong on the left and never gave Willian the chance to do anything of note in the final third. Offered a good outlet going forward as well.
Chelsea vs Manchester City player ratings Fernandinho - 7 Was one of the best City performers with a display full of energy and purpose. Pushed the visitors forward, passed well and was not averse to stopping Chelsea by any means necessary.
Chelsea vs Manchester City player ratings Fernando - 7 Gave Matic as good as he got in midfield and provided the City defence with superb cover throughout the game.
Chelsea vs Manchester City player ratings Jesus Navas - 7 Gave Cesar Azpilicueta the hardest game he's played all season but for all the occasions he beat his opposite number he failed to deliver that telling ball.
Chelsea vs Manchester City player ratings James Milner - 7 Barely troubled Ivanovic as an attacking force but you can't downplay his importance to the City cause as a worker and defender.
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Chelsea vs Manchester City player ratings David Silva - 7 Was not able to offer his usual craft when in possession as he was well marshalled by Matic and Ramires, but got an absolutely vital touch to turn Aguero's shot past Ivanovic.
Chelsea vs Manchester City player ratings Sergio Aguero - 5 Five games since returning from injury and the usually lethal striker is misfiring. Latched on to a Terry mistake to race through on goal for a chance that a pre-injury Aguero would have tucked away - he fired wide.
Chelsea vs Manchester City player ratings Frank Lampard - 5 The stage looked set for another Lampard goal against his former club but it was not to be. Given a great ovation at the end from his former supporters.
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However, Donato Villani, who works for the Argentina national team, believes the 29-year-old is likely to miss at least a month-and-a-half of football.
“He is feeling very bad emotionally because he really wanted to come and play [for Argentina], but this incident has ruled him out of both games,” Villani told TyC Sports .
“He is going to be out for a month-and-a-half - minimum. He is unable to leave his house, or get in or out of the car. He was feeling very bad because he wanted to be here.”
It would also extend his wait to become City's all-time leading goalscorer, with the Argentina international currently one goal away from equalling Eric Brook's record of 177.
The injury has already led to Aguero being left out of Jorge Sampaoli's Argentina squad for crucial 2018 World Cup qualifiers against Peru and Ecuador this month.
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