After a chequered history at Old Trafford, Roy Keane was a notable omission from Sir Alex Ferguson's list of the top Manchester United captains he had the pleasure of coaching.
The relationship between Ferguson and Keane is notoriously fraught, reaching a climax with Keane's acrimonious departure from United in November 2005.
The Irishman enjoyed a hugely successful 12-year spell under the Scot, but the pair saw their time end in tears after a controversial interview Keane gave to MUTV.
The years following Keane's abrupt mid-season exit have seen little reconciliation, with both parties often publicly expressing their enduring tensions.
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