Manchester United says Rio Ferdinand need Wayne Rooney in attack . He believes Rooney 's form has been key to their upturn in performances . Ferdinand said United 's 2-1 win at Anfield shows they are 'on to something ' Rio Ferdinand vs Rio Ferdinand : The expert view of the derby . CLICK HERE for all the latest Rio Ferdinand news .
Rio Ferdinand says Manchester United need Wayne Rooney in attack . He believes Rooney 's form has been key to their upturn in performances . Ferdinand said United 's 2-1 win at Anfield shows they are 'on to something ' Manchester United vs Manchester United : The expert view of the derby . CLICK HERE for all the latest Manchester United news .