Manchester United looked to be heading for three Premier League points when Robin van Persie scored before the break but Clint Dempsey found a stoppage-time equaliser to deny Ferguson's men.

And the United boss was not only convinced that Wayne Rooney was denied a second-half penalty but also blamed the assistant referee for not giving anything his side's way.

"The stand-side linesman never gave us a thing all day," Ferguson told Sky Sports. "For me, it was a poor performance by him.

"Why he never saw the penalty kick on Wayne Rooney and some of the other decisions...

"We remember him well from the Chelsea game (in 2010) when (Didier) Drogba was three yards offside and he gave him onside.

"I think he had a shocking game today. I'm disappointed in his performance, I really am. I think he had a bad game."

But Ferguson did reserve some praise for Spurs as the home team bombarded the United goal after the break.

"You're 1-0 up with a minute to go and we're comfortable at that stage," he added.

"But Tottenham have worked their socks off and you have to give them credit. You can't deny them a point because they've worked ever so hard for it.

"We'd got used to them pumping balls into the box. You'd have thought we'd have dealt with it better.

"And on the counter attack we should have finished them off. It was the final ball letting us down and we should have been better than that."