MANCHESTER CITY 3-2 TOTTENHAM
Manchester City's 100 percent home record seemed about to end after third-placed Tottenham recovered from a two-goal deficit in a mad nine-minute spell midway through the second half in which goals from Spurs' Jermain Defoe and Gareth Bale cancelled out early efforts by City's Samir Nasri and Joleon Lescott.
However, after Defoe missed a chance to claim a remarkable Tottenham victory in stoppage time Balotelli struck from the penalty spot after being brought down by Ledley King.
ARSENAL 1-2 MANCHESTER UNITED
Meanwhile Manchester United also claimed a late win after they went ahead a minute into first-half stoppage time when the evergreen Ryan Giggs delivered a perfect cross for Valencia to head powerfully into the net.
Arsenal were livelier after the restart and Van Persie equalised when teenager Alex Oxlade-Chamberlain's clever angled pass found the Dutchman who fired a low shot in off the far post.
But United claimed an important victory when Valencia dribbled into the area before cutting a pass back for Welbeck to seal the points for the visitors.
MANCHESTER CITY AND MANCHESTER UNITED ON TOP
The results leave the two Manchester clubs in pole position to fight for the title with London sides Spurs, Chelsea and Arsenal trailing in 3th to 5th place.
Premier League Table - Top Five