Bournemouth's Dominic Solanke scored in injury time to complete a hat-trick and hand Nuno Espirito Santo a defeat in his first game in charge of Nottingham Forest.
The former Wolves and Tottenham manager was appointed on Wednesday following the departure of Steve Cooper, was who sacked after the club's fifth defeat in six games.
Forest looked set to avoid another defeat when Chris Wood netted an equaliser in the 74th minute, but Solanke had the final say at the City Ground, scoring in the fourth minute of stoppage time for Bournemouth's third win in a row.
A frantic first half saw Willy Boly sent off after just 23 minutes before Forest were controversially denied a penalty.
Roared on by the home crowd, Anthony Elanga put Forest ahead after the break before Solanke scored twice in seven minutes.
The English forward came to the Cherries' rescue again when he cancelled out Wood's equaliser to claim all three points.
Defeat leaves Forest just two points clear of the relegation zone after Luton Town - who have a game in hand - claimed a 1-0 victory over Newcastle on Saturday.
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Nuno's return to the English top flight took a dramatic turn when Boly - booked earlier for a cynical trip on Solanke - was shown a second yellow card for a lunge on Adam Smith.
Boly, who played under Nuno at Wolves, appeared to get the ball, but referee Robert Jones deemed the Ivory Coast defender to have been too forceful in his follow-through challenge.
Jones was booed by an angry City Ground crowd and tensions continued to rise as another refereeing decision went against the hosts, with the video assistant referee (VAR) unable to confirm whether Smith had been in the penalty area when the ball struck his outstretched arm.
Boos and chants were directed at Jones as he walked off at the break and during half-time the club posted on X they had been "let down badly by awful decisions again".
Nuno's Nottingham reign starts with defeat
Forest confirmed the sacking of manager Cooper on Tuesday following a 2-0 defeat at Tottenham four days earlier.
Welshman Cooper was an extremely popular figure with Forest fans, having ended the club's 23-year absence from the top flight when he led them to promotion from the Championship in 2022.
If Forest's supporters were feeling disappointed by Cooper's departure, they did not show it - offering a warm welcome to his successor and backing the team throughout a feisty encounter.
Angry that refereeing decisions had not gone their way earlier, the stands erupted as Elanga, played in by Wood, placed his strike well beyond the reach of Neto straight after the break.
Even after Solanke scored twice in quick succession, the home support could not be silenced with Wood's equaliser boosting their spirits.
Nuno was not content with a single point as his side pushed in search of a winner, only for Solanke to snatch all three for Bournemouth.
It gets no easier for Nottingham Forest as they look for their first win since the start of November. They travel to Newcastle on Tuesday.
Superb Solanke strikes again
Solanke has almost doubled his Premier League goal tally from last season, when he netted only six in 33 appearances.
This season he has 11 and finds himself joint third in the league's scoring charts - tied with Jarrod Bowen of West Ham and Tottenham's Son Heung-min.
The former Liverpool striker is proving himself leading Andoni Iraola's attacking line as Bournemouth inch closer to the top half of the table.
Before the first of his three goals on Saturday, Solanke threatened on the counter, drawing Boly's first yellow card before hitting the side netting.
Two looping headers over goalkeeper Matt Turner's head demonstrated his quality in the air, while he was in the right place at the right time for his second goal, unmarked as he pounced on a loose ball.
Iraola's side are next in action against Fulham on Tuesday before they travel to Tottenham on New Year's Eve.
Player of the match
SolankeDominic Solanke
with an average of 8.40
Nottingham Forest
Squad number7Player nameN Williams
Squad number11Player nameWood
Squad number21Player nameElanga
Squad number10Player nameGibbs-White
Squad number1Player nameTurner
Squad number22Player nameYates
Squad number15Player nameToffolo
Squad number40Player nameMurillo
Squad number19Player nameNiakhaté
Squad number14Player nameHudson-Odoi
Squad number27Player nameOrigi
Squad number5Player nameMangala
Squad number43Player nameAina
Squad number28Player nameDanilo
Squad number30Player nameBoly
AFC Bournemouth
Squad number9Player nameSolanke
Squad number10Player nameChristie
Squad number24Player nameSemenyo
Squad number16Player nameTavernier
Squad number29Player nameBilling
Squad number25Player nameSenesi
Squad number15Player nameA Smith
Squad number4Player nameL Cook
Squad number7Player nameBrooks
Squad number27Player nameZabarnyi
Squad number1Player nameNeto
Squad number11Player nameOuattara
Squad number21Player nameMoore
Squad number14Player nameScott
Squad number8Player nameRothwell
Squad number17Player nameSinisterra
Line-ups
Nottm Forest
Formation 4-2-3-1
- 1Turner
- 7N Williams
- 30BolyBooked at 23mins
- 40Santiago Costa dos Santos
- 15ToffoloSubstituted forAinaat 85'minutes
- 22Yates
- 5MangalaSubstituted forHudson-Odoiat 45'minutes
- 27OrigiSubstituted forNiakhatéat 26'minutes
- 10Gibbs-WhiteSubstituted forDaniloat 90+3'minutes
- 21Elanga
- 11Wood
Substitutes
- 3Tavares
- 8Kouyaté
- 14Hudson-Odoi
- 16Domínguez
- 19Niakhaté
- 23Vlachodimos
- 28Danilo
- 29Montiel
- 43Aina
Bournemouth
Formation 4-2-3-1
- 1Neto
- 15A Smith
- 27Zabarnyi
- 25Senesi
- 11OuattaraSubstituted forMooreat 82'minutes
- 4L CookSubstituted forScottat 29'minutesBooked at 31minsSubstituted forRothwellat 70'minutes
- 10ChristieBooked at 68mins
- 24SemenyoBooked at 65minsSubstituted forSinisterraat 70'minutes
- 29BillingSubstituted forBrooksat 81'minutes
- 16Tavernier
- 9Solanke
Substitutes
- 6Mepham
- 7Brooks
- 8Rothwell
- 14Scott
- 17Sinisterra
- 19Kluivert
- 21Moore
- 42Travers
- 43Greenwood
Referee:Robert Jones
Attendance:29,188
Live Text
Match ends, Nottingham Forest 2, Bournemouth 3.
Second Half ends, Nottingham Forest 2, Bournemouth 3.
Delay over. They are ready to continue.
Delay in match because of an injury Adam Smith (Bournemouth).
Delay in match because of an injury Ryan Yates (Nottingham Forest).
Attempt blocked. Callum Hudson-Odoi (Nottingham Forest) right footed shot from the left side of the box is blocked. Assisted by Ryan Yates with a headed pass.
Goal! Nottingham Forest 2, Bournemouth 3. Dominic Solanke (Bournemouth) header from the centre of the box to the top right corner. Assisted by Adam Smith with a cross.
Delay over. They are ready to continue.
Substitution, Nottingham Forest. Danilo replaces Morgan Gibbs-White because of an injury.
Delay in match because of an injury Morgan Gibbs-White (Nottingham Forest).
Ryan Christie (Bournemouth) wins a free kick in the defensive half.
Foul by Morgan Gibbs-White (Nottingham Forest).
Corner, Nottingham Forest. Conceded by Marcos Senesi.
Foul by Kieffer Moore (Bournemouth).
Murillo (Nottingham Forest) wins a free kick in the defensive half.
Substitution, Nottingham Forest. Ola Aina replaces Harry Toffolo.
Corner, Bournemouth. Conceded by Harry Toffolo.
Attempt blocked. Dominic Solanke (Bournemouth) left footed shot from the centre of the box is blocked.
David Brooks (Bournemouth) hits the left post with a left footed shot from the centre of the box. Assisted by Marcus Tavernier with a cross.
Foul by Kieffer Moore (Bournemouth).