London: Ryan Giggs enjoyed a dream 900th appearance with a 90th minute winner in Manchester United`s 2-1 victory at Norwich City in the Premier League on Sunday while Arsenal came from behind to thump Tottenham Hotspur 5-2 in an astonishing North London derby.
United went ahead with a seventh minute header from Paul Scholes but Grant Holt levelled seven minutes from time before Giggs had the last laugh to keep the champions two points behind leaders Manchester City, who beat Blackburn Rovers 3-0 on Saturday.
"For Ryan to score the winning goal with the last kick of the ball in his 900th game, he probably deserves that for the career he`s had," smiled United manager Alex Ferguson.
Spurs are third on 53 points but endured a miserable day after taking a 2-0 lead at their arch-rivals before Arsenal scored five in 28 minutes.
Louis Saha put Spurs ahead in the fourth minute and ex-Arsenal striker Emmanuel Adebayor double the tally with a 34th minute penalty.
Arsenal were level by halftime thanks to goals from Bacary Sagna in the 40th and Robin van Persie, who took his season`s tally to 29, three minutes later. The Gunners then added three more in the second half with Theo Walcott scoring twice and Tomas Rosicky grabbing the other.
Arsenal, whose comeback came before Scott Parker`s late red card for Spurs after a second yellow for a late challenge on Thom Vermaelen, ended the day in fourth place on 46 points, above Chelsea having scored more goals.
Giggs, who made his debut for United in 1991 and is now 38, ended yet another milestone day in his long career by converting a cross from Ashley Young to keep the champions on City`s heels. With 12 matches to play City have 63 points and United 61.
Giggs told reporters afterwards: "It was obviously a special moment, to score late on is always nice and to get the winner is a bonus.
"To play 900 games for the club I have grown up supporting is special, it`s a great day for me and I am sure there will still be plenty of twists and turns in this title race."
Scholes, who first played with Giggs in a United side 17 years ago and has been in superb form since ending his premature retirement last month, headed home Nani`s cross for the first goal.
While Giggs had another day to remember so did Arsenal, whose erratic form all season meant Spurs were in the unusual position of starting a derby as the favourites.
It seemed as though the pundits had got it right when they went ahead with a Saha goal after good work by Adebayor exploited huge gaps in the Arsenal defence after only four minutes.
Adebayor then became only the second player, after Jimmy Robertson in the 1960s, to score for both Arsenal and Spurs in the derby when he converted from the spot after Gareth Bale was brought down by goalkeeper Wojciech Szczesny and Kieran Gibbs.
Arsenal responded superbly. Sagna scored their first with a bullet header moments after Van Persie had hit a post and Van Persie then equalised with a superbly taken curling shot.
Rosicky put the home side in control early in the second half and Arsenal dominated the rest of the game with Walcott turning the first half jeers from the home fans to cheers with two well-taken goals.
Arsenal manager Arsene Wenger, nursing a heavy cold said there was no particular tactical reason why the game turned so dramatically.
"We just showed some great spirit and we just refused to lose this game," he said. "Spurs started on top but after that we were on top. And it is still possible for us to finish higher than them, its all down to consistency in the Premier League for the rest of the season."
Tottenham manager Harry Redknapp, who will now be without Parker for next Sunday`s visit of Manchester United, said: "Even when we were 2-0 up I didn`t feel comfortable.
"They were hitting us on the break and we were camped deep in our half. Once they got back to 2-2 the momentum was with them and we knew we were in for a tough second half."
Stoke City beat Swansea City 2-0 in a later game.