Manchester City news
We cannot afford to slip up, Silva warns City
December 20, 2011
By ESPN staff
City briefly surrendered top spot at the weekend, but returned to the summit after a narrow 1-0 win over Arsenal on Sunday.
United are just two points behind after City lost at Chelsea last week, and Silva has warned they cannot afford to slip up again.
"We are aware that Manchester United are going to be pushing us all the way but we have ...