Kyle Walker admits Manchester City will need to be on red alert to deal with Manchester United forward Marcus Rashford - despite his England teammate's lack of goals this season.
After plundering 30 goals in all competitions for United last season, Rashford has only registered once in 12 outings for his club so far this season.
However, the misfiring United man was on target when playing for England alongside Walker during an important win over Italy at Wembley this month.
Putting their international allegiances to one side, Walker and Rashford will go toe-to-toe with each other during the season's first Manchester derby on Sunday afternoon (3.30pm).
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