Manchester City's Premier League title aspirations suffered a significant setback as Nottingham Forest battled back twice to secure a 2-2 draw at the Etihad Stadium.
The result leaves Pep Guardiola's side trailing Arsenal by seven points at the summit, though they retain a match in hand over the league leaders.
Forest, fighting against relegation under recently appointed boss Vitor Pereira, demonstrated remarkable resilience to claim a valuable point.
Elliot Anderson's stunning late strike cancelled out Rodri's headed effort.
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Morgan Gibbs-White had earlier responded to Antoine Semenyo's opener.
The draw keeps Forest outside the relegation zone on goal difference alone.
City appeared in control during the opening period.
They were required to exercise patience against Forest's disciplined defensive structure.
Manchester City drew to Nottingham Forest
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Semenyo fired into the side-netting early on before Erling Haaland forced an opportunity by intercepting a wayward clearance from goalkeeper Matz Sels, only for Bernardo Silva's subsequent shot to be deflected into the keeper's grasp.
Phil Foden twice went close, slicing one attempt wide before firing directly at Sels.
The breakthrough arrived when Rayan Cherki floated into the penalty area and delivered a cross for Semenyo.
The winger adjusted his body superbly to volley home his fifth Premier League goal since joining from Bournemouth.
Five facts about the Premier League | GETTY/GBNEWS/PAForest struck against the run of play on 56 minutes when Ola Aina burst past Rayan Ait-Nouri down the right flank and delivered a cross that Igor Jesus nodded down for Gibbs-White to finish with an instinctive backheel that deceived Gianluigi Donnarumma.
City responded emphatically just after the hour mark, with Rodri powering a header into the net from Ait-Nouri's corner delivery.
Forest protested that Sels had been impeded, but officials dismissed their appeals.
Anderson then produced the moment of the match 14 minutes from time.
Pep Guardiola's side trail Arsenal by seven points at the summit
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Exchanging passes with Callum Hudson-Odoi, he then bent a magnificent effort into the bottom corner from outside the box.
The closing stages produced further drama as Ryan Yates headed narrowly wide during stoppage time, agonisingly close to snatching all three points for the visitors.
Sels was forced into action to tip over Semenyo's free-kick, whilst Savinho saw his effort blocked on the line in a frantic goalmouth scramble with the final kick of the contest.
Forest remain without a league victory under Pereira's stewardship, yet this performance suggests they possess the fighting spirit needed to survive.
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