Chelsea 0-1 Manchester City: Riyad Mahrez goal moves champions within five points of Arsenal

Riyad Mahrez's goal was his second in the Premier League this season

Manchester City closed the gap on Premier League leaders Arsenal to five points with victory over injury-ravaged Chelsea at Stamford Bridge.

The reigning champions struggled in the first half before two of manager Pep Guardiola's substitutes combined to break the deadlock after 63 minutes, Riyad Mahrez turning in Jack Grealish's low cross at the far post.

Chelsea enjoyed the better of the first half despite adding both former City forward Raheem Sterling and Christian Pulisic to a lengthening injury list, substitute Carney Chukwuemeka hitting the post from the edge of the area.

Graham Potter will justifiably point to Chelsea's ill-luck with absentees but the bottom line is this defeat leaves them in the unaccustomed position of 10th, 10 points off the Champions League places.

City, meanwhile, will be happy to get three points despite being nowhere near their best and on a rare night when scoring machine Erling Haaland failed to hit the target.

• 'It could get worse before it gets better at Chelsea'

• Grealish says adapting at Man City has been 'difficult'

• Go straight to all the best Chelsea content

• Visit our Manchester City page

Man City dig for victory

City were nowhere near their best but the celebrations at the final whistle were a sign that this was the sort of fighting win that is the trademark of champions.

Guardiola's side struggled in the first half with three in central defence but the manager reverted to four in the second half in what was an ominous show of strength from his substitutes' bench.

And it worked to settle this tight encounter as Chelsea keeper Kepa Arrizabalaga failed to cut out Grealish's cross and Mahrez got in ahead of Marc Cucurella to make the decisive contribution.

John Stones was singled out for special acclaim by City's travelling fans at the final whistle and rightly so after another outstanding performance, the highlight coming with a superbly-timed tackle on Pulisic in the six-yard box with the game in the balance.

City will have better days and nights than this but the main objective here against a tough opponent was a win that would make up for the disappointing home draw against Everton, and this was very much mission accomplished.

Chelsea fight but struggles continue

Chelsea's fans applauded their players off at the final whistle despite this damaging defeat, putting aside their disappointment as they understood the current situation facing manager Potter.

This is a club in transition under new owner Todd Boehly, with the Chelsea hierarchy operating a somewhat scattergun transfer policy, and a newly-arrived manager in Potter attempting to put his stamp on this team.

Chelsea currently look way off being contenders for a place in the Champions League, surely a minimum requirement given their outlay and ambition on a day when they confirmed another arrival in £35m defender Benoit Badiashile from Monaco.

They never lacked heart or effort but were struggling from the moments they lost Sterling and Pulisic to injury, eating further into Potter's squad.

Potter's plight was illustrated when he sent on 19-year-old Chukwuemeka for Pulisic and he was joined by young trio Conor Gallagher, Lewis Hall and Omari Hutchinson as they tried to rescue the game after City took the lead.

Pierre-Emerick Aubameyang was the early substitute for Sterling but suffered the ignominy of being substituted late on. He could have no complaints after a poor performance in which he looked a thoroughly spent force.

This was more disappointment for Chelsea, who now face an uphill struggle to get anywhere near the clubs they would regard as their traditional Premier League rivals.

• Our coverage of your Premier League club is bigger and better than ever before - here's everything you need to know to make sure you never miss a moment