Rio Ferdinand ban: Harry Redknapp 'doesn't understand Twitter'

QPR manager Harry Redknapp says he won't be advising his players on the use of social media because he "doesn't know what Twitter is".

Redknapp was responding to questions following Rio Ferdinand's three-match ban by the Football Association for using a crude insult on social media.

Ferdinand was also fined £25,000 and warned as to his future conduct.