Oli McBurnie had the best chances for the Blades, while Morgan Gibbs- White saw a shot deflected over the bar.
The Tigers had some decent opportunities themselves, with the impressive Keane Lewis-Potter looking dangerous down the left flank.
Ultimately both sides had to settle for a point – City’s first in four matches – with United back in action here at Bramall Lane this weekend against Swansea City.
Here’s how we rated United’s players…
5. Jack Robinson 5
Had a golden chance to open the scoring early on but nodded Norwood's free-kick wide, despite being in acres of space. Photo: Andrew Yates
6. Rhys Norrington-Davies 5
Given another chance on the left in Bogle's absence, he seemed determined to take it with a number of direct runs in the first half. Crudely wiped out by Honeyman in the closing stages of the first 45 minutes and flashed a late effort wide as United sought a winner Photo: Andrew Yates
7. Ollie Norwood 5.5
Replaced Berge in midfield and almost picked up an early assist, but Robinson headed his free-kick wide of goal. Saw a good cross headed over by McBurnie later on and his passing was crisp at times, despite the odd lapse. Photo: Simon Bellis
8. Conor Hourihane 5
Back in the side at Fleck's expense, the Aston Villa loanee showed some moments of quality on his left foot and gave the ball away sloppily at times too. Linked up well with Norrington-Davies down the Blades left before he was replaced by Berge Photo: Simon Bellis