The Blades led against the run of play when Billy Sharp nodded home his latest goal in front of the Kop, after Wes Foderingham had saved Brennan Johnson’s poor penalty in the first half.
But United couldn’t see it out as Ryan Yates headed home from a corner in injury time, denying the Blades what could be two crucial points against a play-off rival in the race for the top six.
Here’s how our man rated the Blades’ players on an evening of frustration and disappointment at Bramall Lane.
5. Jack Robinson 6
Put under pressure early doors by a loose Foderingham pass, but Egan got to the cross before a Forest man. A composed display once again Photo: Andrew Yates
6. Rhys Norrington-Davies 5
Gave away the penalty when he was beaten by Spence down the right and hauled him down as he looked to break away on goal. Was having a tough time of it in the first half but showed good awareness and aggression to get across in the second and stop Zinckernagel in his tracks Photo: Mike Egerton
7. Ollie Norwood 6
Did a brilliant job off the ball in front of the back four, putting his foot in to break up play and make vital tackles as Forest looked to expose the Blades back three. Replaced by Jebbison as United chased the winner Photo: Simon Bellis
8. Sander Berge 6
Had United's first real chance of the game when his well-struck shot was palmed away by Horvath. Showed some good moments when he strode forward and drove at the Forest defence Photo: Andrew Yates