Mark Duffy: 'It's sad how it ended – I must've caught the gaffer on a bad day' – The Athletic
Mark Duffy left Sheffield United under a cloud and it's not going to plan - Sheffield United News
3 qualities Mark Duffy would bring to Tranmere if he signed - Opera News
Mark Duffy still stunned by his shock Sheffield United exit after seeking 'friendly chat' with Bramall Lane boss Chris Wilder — ViewFromTheJohnStreet.Com
Anfield trip highlights sadness that Mark Duffy hasn't been able to share in Blades' Premier League adventure – The Athletic
A special day says Mark Duffy - YouTube
Mark Duffy sends message to Sheffield Utd fans – as he tries to repeat the trick at Stoke City - Stoke-on-Trent Live
Stoke City's Mark Duffy in action Stock Photo - Alamy
Mark Duffy tweets about Preston, could he end up joining North End? - Deepdale Digest
Mark Duffy tweets about Preston, could he end up joining North End? - Deepdale Digest
Mark Duffy | Football Wiki | Fandom
Things not improving for Mark Duffy as he suffers miserable day for Den Haag - Sheffield United News
Sheffield United news: Mark Duffy free to leave Sheffield United with a year left on his contract | Daily Mail Online
Sheffield United's Mark Duffy Is Enjoying Life On And Off The Pitch | Football | TheSportsman
Mark Duffy - Fleetwood Town | Player Profile | Sky Sports Football
Mark Duffy (footballer) - Wikipedia
Sheffield United's Mark Duffy posts playoff tweet, Blades fans reply mocking Leeds
Mark Duffy left Sheffield United under a cloud and it's not going to plan - Sheffield United News
Mark Duffy completes his move from Southport FC to Morecambe FC - Southport Visiter
Mark Duffy » Club matches » Eredivisie
Mark Duffy: Fleetwood Town sign ex-Sheffield United midfielder - BBC Sport
Mark Duffy (@markduffy7) | Twitter
Mark Duffy Profile, News & Stats | Premier League
Mr Mark Stephen Duffy | UNSW Research
Virtual on the Couch with Mark Duffy – IPAA South Australia | IPAA South Australia
