Birmingham City: Mark Duffy close to boosting Blues wing options - Birmingham Live
Mark Duffy left Sheffield United under a cloud and it's not going to plan - Sheffield United News
Mark Duffy (footballer) - Wikipedia
Sheffield United's Mark Duffy Stock Photo - Alamy
Sheffield United: Manager makes transfer threat as Mark Duffy holds talks | The Star
Mark Duffy to stay at Burton until the end of the season
Mark Duffy: Fleetwood Town sign ex-Sheffield United midfielder - BBC Sport
Sheffield United: Manager speaks out about Mark Duffy's absence as Ben Osborn deal imminent | The Star
A special day says Mark Duffy - YouTube
Mark Duffy: 'It's sad how it ended – I must've caught the gaffer on a bad day' – The Athletic
Mark Duffy pushing to start for Fleetwood after fine midweek display | NewsChain
James Shield's Sheffield United Column: Has Blades star Mark made a duff move? | The Star
Mark Duffy (@markduffers) | Twitter
Sheffield United's greatest goals: Mark Duffy becomes the 'Bounce Killer' – The Athletic
Mark Duffy
ADO Den Haag huurt ervaren Mark Duffy van Sheffield United - ADO Den Haag
Mark Duffy: Fleetwood Town sign ex-Sheffield United midfielder - BBC Sport
Mark Duffy left Sheffield United under a cloud and it's not going to plan - Sheffield United News
I never tire of seeing it' - Mark Duffy remembers his iconic goal for Sheffield United to help beat Wednesday, three years ago today | The Star
Sky Bet EFL Q&A: Liverpool fan Mark Duffy prefers Pep Guardiola to Jurgen Klopp | Daily Mail Online
Sheffield United's Mark Duffy Is Enjoying Life On And Off The Pitch
Rotherham fan hurls bottle at Mark Duffy as he celebrates Sheffield United goal in South Yorkshire derby
Anfield trip highlights sadness that Mark Duffy hasn't been able to share in Blades' Premier League adventure – The Athletic
Sheffield United: Mark Duffy had to be persuaded not to play against Oxford United | Worksop Guardian
Mark Duffy completes his move from Southport FC to Morecambe FC - Southport Visiter
