Celtic bounced back from Saturday's Old Firm defeat with a 2-1 victory at home to Dundee Utd.
Victory over United sends Celtic top
Celtic bounced back from Saturday's Old Firm defeat with a 2-1 victory at home to Dundee United.
Both sides played their part in a lively opening before Glenn Loovens headed in a Shunsuke Nakamura corner after 22 minutes to give the Hoops control.
Georgios Samaras made it 2-0 with a deflected shot from distance early in the second half, but United soon responded through a David Robertson strike.
There were further chances at either end but Celtic held firm to return to the top of the table, one point ahead of Rangers having now played a game more.
It was a far from convincing performance from Gordon Strachan's side but they will care little and all the pressure returns to the blue side of Glasgow as Rangers face Hibernian on Wednesday.
Confident start
United started the game with confidence and in the fourth minute busy midfielder Craig Conway took a pass from Francisco Sandaza and flashed a shot from 25 yards just past the post.
United dominated possession, playing some neat football but in the 13th minute Celtic midfielder Scott Brown, back after a two-game ban, drove forward before sending Scott McDonald scurrying down the right.
When the Parkhead striker's cross came, Samaras' left-footed shot bounced in to the ground and past United goalkeeper Lukasz Zaluska - only to hit the post before it was cleared away to safety.
United refused to waver and in the 20th minute Conway flighted a cross to the back post and Sandaza's header was netbound before it was brilliantly clawed away by Artur Boruc.
However, a minute later Celtic forged ahead through Loovens after United skipper Lee Wilkie had conceded a corner defending an Andreas Hinkel cross.
Shunsuke Nakamura put the ball into a busy six-yard box and the big Dutchman rose highest to flick the ball past Zaluska.
United's confidence seemed to evaporate instantly as the Parkhead side poured forward looking for number two.
Huge gaps
With Wilkie picking up a knock, there were huge gaps in the United defence and McDonald wasted a couple of chances before the half-hour mark.
The Taysiders, to their credit, tried to pass their way back into the game but Celtic refused to let them settle and in the 39th minute it needed Wilkie's intervention to prevent McDonald latching onto a Samaras cross at the near post.
It looked an uphill task for United at the start of the second half but within three minutes, Boruc had to rush from his line to block Sandaza's angled drive after a clever pass from Morgaro Gomis had put him in.
Moments later, after Conway's inswinging free-kick had landed at his feet six yards out, United defender Garry Kenneth miskicked, allowing the Hoops' defence to clear.
The game seemed over in the 52nd minute when Samaras made it 2-0 with a fortunate goal.
Brown combined with McDonald to set up the Greece international 20 yards from goal but his shot initially appeared harmless until it took a clear deflection off Wilkie to wrong-foot Zaluska.
In the 55th minute, with United in disarray, Zaluska had to make a decent save from Brown's header after the Scotland midfielder had latched onto a sweeping Naylor cross.
Panic
But two minutes later Robertson reduced the lead when he appeared at the far post to despatch Paul Dixon's deep cross past Boruc.
As Celtic and their fans began to panic, United midfielder Prince Buaben blasted the ball high over the bar from 14 yards after Robertson's cross had eluded the Parkhead defence.
As tension mounted further, Zaluska pulled off a great save from Nakamura after Samaras had sent him racing into the United box.
A goal then would have surely deflated the Taysiders but they took heart from the let-off and swarmed around the Celtic penalty area.
In the 78th minute Buaben had a dipping volley from 30 yards comfortably saved by Boruc but although United kept at it until the end, they never really threatened the Celtic goal again.
However, referee Stuart Dougal's full-time whistle was greeted with relief from the Celtic fans and all eyes now turn to Easter Road.