The Blades had a goal disallowed by VAR after Son Heung-min had put the home side ahead.
But the equaliser came 12 minutes from time to earn Chris Wilder's side another deserved point on the road.
Tottenham 1 Sheffield United 1
Read Stuart Rayner's analysis HERE
Patrick Bamford brought an end to his goalscoring drought as Leeds United saw off Blackburn Rovers. Sheffield Wednesday were involved the most dramatic of draws while Barnsley and Hull were both beaten on home turf by Stoke City and West Brom respectively.
Leeds United 2 Blackburn Rovers 1
Read Leon Wobschall's analysis HERE
Sheffield Wednesday 2 Swansea City 2
Read Richard Hercock's analysis HERE
Barnsley 2 Stoke City 4
Read Chris Waters's analysis HERE
Hull City 0 West Brom 1
Read Rhys Howell's analysis HERE
Meanwhile, Huddersfield Town's unbeaten run came to and end after a defeat at Preston North - READ MORE.
And Jonathan Woodgate and Middlesbrough took a much-needed point at QPR - READ MORE.
In the FA Cup, Rotherham United came from behind to beat Maidenhead United 3-1 while Bradford City forced a replay after a 1-1 draw at Shrewsbury Town. Doncaster Rovers will also contest a replay after a 1-1 draw at AFC Wimbledon.