Ruben Amorim's Manchester United, seeking their fourth straight league win, appeared set to climb to second in the table when leading 1-0 at the City Ground courtesy of Casemiro's first-half opener.

But Forest, who had not scored a league goal since September 20, roared back after the break as their confidence flooded back.

Morgan Gibbs-White headed the home side level in the 48th minute before Nicolo Savona tapped in just two minutes later to complete a dramatic turnaround.

But Amad Diallo levelled with a sweet volley in the 81st minute to rescue a point for United, who have been much improved in recent weeks after a poor start to the season.

Forest, who last month appointed Sean Dyche as manager to replace the sacked Ange Postecoglou, remain in the relegation zone, four points behind 17th-placed Burnley.