Rangers cruised to the top of the Scottish Premier League with a double from former Celtic player Kenny Miller helping secure a 4-2 win against their Old Firm rivals at Parkhead.
Both teams finished with ten-men with Daniel Cousin and Jan Vennegoor of Hesselink seeing red in the second-half. The teams had gone in level at half-time after a superb solo effort from Daniel Cousin was cancelled out by Celtic's Georgios Samaras.
But Miller came back to haunt his former employers, scoring twice either side of a Pedro Mendes wonder strike from 30 yards out before Shunsuke Nakamura scored a consolation goal in injury time.
In the first half both teams struggled to create many clear-cut chances.
In the fourth minute, Miller, facing jeers from the home support, had an effort turned out for a corner following good work from Charlie Adam.
Celtic captain Stephen McManus went close with a header in the 7th minute from a Nakamura free-kick.
Samaras had the half's first effort on target in the 22nd minute but his downward header was easily saved by Allan McGregor.
Cousin met a Steven Davis corner at the far post in the 30th minute but his volley sailed high over the bar.
McGregor had to be sharp to save from his own player in the 32nd minute when Andres Hinkel's cross from the right appeared to come off David Weir.
The first half came to life in the 37th minute with a superb solo goal from Cousin. The Gabonese striker ran past Mark Wilson on the right wing before cutting in and putting the ball past Artur Boruc from a tight angle into the far corner of the net.
The Rangers fans had little time to celebrate before Samaras put Celtic level in the 40th minute. Shaun Maloney knocked down an Aiden McGeady cross which Weir and Sasa Papac failed to deal with and Samaras knocked the ball past McGregor from a couple of yards out.
Maloney came close to putting Celtic in the lead with a curling effort from the edge of the box in the 50th minute. But it was the away support that went wild in the 52nd minute when Miller put Rangers ahead.
The Scottish striker, scoring his first goal of the season, met Kevin Thomson's cross from the left with a sweet volley that bounced past Boruc and into the far left corner of the net.
Mendes made it 3-1 in the 62nd minute with a wonder strike from 30 yards out. The Portuguese midfielder met Davis' corner from the left with power and pace and his low drive flew past Boruc, who had no chance.
Things turned nasty in the 75th minute when Cousin was sent off after picking up his second yellow card for a foul on McManus. Celtic were reduced to ten-men a minute later when substitute Jan Vennegoor of Hesselink, who had only been on three minutes, was shown a straight red for kicking out at Kirk Broadfoot.
An horrendous error from Boruc allowed Miller get his second and wrap up the points for Rangers. The Polish keeper spilled a cross from Broadfoot which fell to Miller who put the ball into the open goal from a couple of yards out.
Nakamura scored a consolation goal for Celtic in injury time when his free-kick was deflected past McGregor by Broadfoot.
On Saturday Kilmarnock went top of the SPL with goals from Gavin Skelton and Danny Invincible securing a 2-0 win against Dundee United at Tannadice.
Motherwell picked up their first win of the season with John Sutton's late goal sealing a 1-0 win away to Hibernian.
Darren Mackie scored the only goal as Aberdeen won 1-0 against St Mirren at Love Street.
Inverness CT took three points from their match at Falkirk with Don Cowie and Dougie Imrie cancelling out Mark Stewart's opener.
Hearts recorded their first away win of the season with a 2-1 victory over Hamilton. Marius Zaliukas and Andrew Driver scored for the Jambos with Derek Lyle knocking in a consolation for Hamilton.