Man Utd blew a great chance to go back top of the Premier League earlier tonight when the lost 2-1 at home to bottom of the table Sheffield Utd.
Man Utd 1-2 Sheffield Utd
Yes, that old Achilles heal came back to inflict pain on Ole Gunnar Solskaer's team - their home form.
Yet again, Manchester United struggled to break down a side at Old Trafford, who sat back, and put men behind the ball.
Even with the openness of the Premier League this season, any team is probably going to struggle to win it with United's home form. Especially when their cross town rivals seem to be finally hitting their straps.
Not the most original headline, I know (I'm sure the Sun would be proud of it), but Solskjaer and United have stot themselves in the foot - yet again.
Dropping any points at home to Sheffield United isn't going to help your cause if you're trying to win the league.
But the biggest set back this could be to United, is to their confidence.
Think back a few weeks to how tentative they were at home after the thrashing to Spurs.
For the next few home matches United were very suspect. How far removed is that period of the season from the players' minds?
Will United be top again this Season?
Depending on results this weekend, Tuesday may have been the last time United see top spot in the Premier League this season.
City are away to Sheffield United on Saturday at 3pm. So by the time the Red Devils play in-form Arsenal (away) at 5.30, they will probably already be 4 points behind.
So if United can't beat the Gunners, they could be chasing City's tail for the foreseeable future.
If United do manage a win at the Emirates, they could go back top on Tuesday for 24 hours. They play Southampton at home that night, a day before City face Burnley.
The last lifeline I can see for United after that is City then have a tricky three matches. First up is Liverpool away on 7th Feb, followed by Spurs at home (13th Feb), and Arsenal away on 21st Feb.
After that run of fixtures, we should have a far better idea where the Premier League title is going.
Although, looking at the latest odds, the bookies and punters seem to have already made up their minds.