Middlesbrough manager Chris Wilder has provided his verdict on two of Manchester's most successful managers, Sir Alex Ferguson and Pep Guardiola.
Before joining the Teesside club, Wilder spent five years at Bramall Lane where he came up against an array of managers while the Blades were in the top flight.
Speaking to talkSPORT, the Boro boss named who he believes to be a 'tactical genius'.
