Mark Duffy
| Date of birth | 07 October 1985 |
| Place of birth | Liverpool |
| Nationality | English |
| Weight | 72 kg |
| Height | 1.75 m |
| Position | Midfielder |
Mark Duffy played for Liverpool and Wrexham during his youth career.
After a loan spell, he joined Morecambe in May 2009 with a two-year contract.
Mark joined Scunthorpe United in January 2011 with a contract to June 2013 that was extended to June 2014 in January 2013.
He joined Doncaster Rovers in July 2013 with a three-year contract.
Mark joined Birmingham City in July 2014 with a two-year contract.
He joined Sheffield United in July 2016 with a two-year contract that was extended to June 2020 in January 2018.
Club history
| Team | Joined | Left | Loan / Trialist |
|---|---|---|---|
| Vauxhall Motors | 01 Jul 2004 | 01 Feb 2005 | |
| Prescot Cables | 01 Feb 2005 | 01 Jan 2007 | |
| Southport | 01 Jan 2007 | 11 May 2009 | |
| Morecambe | 23 Feb 2009 | 10 May 2009 | L |
| Morecambe | 11 May 2009 | 20 Jan 2011 | |
| Scunthorpe United | 20 Jan 2011 | 15 Jul 2013 | |
| Doncaster Rovers | 15 Jul 2013 | 18 Jun 2014 | |
| Birmingham City | 18 Jun 2014 | 30 Jun 2016 | |
| Chesterfield | 02 Feb 2015 | 02 Mar 2015 | L |
| Burton Albion | 03 Jul 2015 | 31 May 2016 | L |
| Sheffield United | 01 Jul 2016 | 30 Jun 2020 | |
| Stoke City | 08 Aug 2019 | 30 Jan 2020 | L |
| ADO Den Haag | 31 Jan 2020 | 29 Jun 2020 | L |
| Fleetwood Town | 04 Sep 2020 |
Club stats
| Season | Team | Competition | Apps | Subs | Goals | Y | R |
|---|---|---|---|---|---|---|---|
| 2008-09 | Morecambe | League Two | 4 | 5 |
1 |
1
|
|
| 2009-10 | Morecambe | FA Cup | 2 |
1 |
|||
| 2009-10 | Morecambe | Johnstones Paint Trophy | 1 | ||||
| 2009-10 | Morecambe | League Cup | 1 | ||||
| 2009-10 | Morecambe | League Two | 24 | 11 |
4 |
4
|
1
|
| 2009-10 | Morecambe | League Two Play-Offs | 2 | 1 |
|||
| 2010-11 | Morecambe | FA Cup | 1 | ||||
| 2010-11 | Morecambe | Johnstones Paint Trophy | 1 | ||||
| 2010-11 | Morecambe | League Cup | 1 | 1 |
1
|
||
| 2010-11 | Morecambe | League Two | 16 | 6 |
1
|
||
| 2010-11 | Scunthorpe United | League Championship | 19 | 3 |
1 |
2
|
|
| 2011-12 | Scunthorpe United | FA Cup | 2 | ||||
| 2011-12 | Scunthorpe United | Johnstones Paint Trophy | 1 | 1 |
|||
| 2011-12 | Scunthorpe United | League Cup | 1 | 1 |
|||
| 2011-12 | Scunthorpe United | League One | 27 | 10 |
2 |
2
|
1
|
| 2012-13 | Scunthorpe United | FA Cup | 1 | ||||
| 2012-13 | Scunthorpe United | Johnstones Paint Trophy | 1 | 1 |
|||
| 2012-13 | Scunthorpe United | League Cup | 2 | 1 |
|||
| 2012-13 | Scunthorpe United | League One | 43 | 5 |
3
|
1
|
|
| 2013-14 | Doncaster Rovers | FA Cup | 1 | ||||
| 2013-14 | Doncaster Rovers | League Championship | 28 | 8 |
2 |
3
|
|
| 2013-14 | Doncaster Rovers | League Cup | 1 | 1 |
|||
| 2014-15 | Birmingham City | FA Cup | 1 |
1
|
|||
| 2014-15 | Birmingham City | League Championship | 1 | 3 |
|||
| 2014-15 | Birmingham City | League Cup | 1 | 1 |
1 |
||
| 2014-15 | Chesterfield | League One | 1 | 2 |
|||
| 2015-16 | Burton Albion | FA Cup | 1 | ||||
| 2015-16 | Burton Albion | Johnstones Paint Trophy | 1 | ||||
| 2015-16 | Burton Albion | League One | 44 | 1 |
8 |
1
|
|
| 2016-17 | Sheffield United | FA Cup | 1 | 1 |
|||
| 2016-17 | Sheffield United | Football League Trophy | 1 | 1 |
1
|
||
| 2016-17 | Sheffield United | League Cup | 1 | ||||
| 2016-17 | Sheffield United | League One | 38 | 1 |
6 |
3
|
|
| 2017-18 | Sheffield United | FA Cup | 1 | 1 |
|||
| 2017-18 | Sheffield United | League Championship | 28 | 8 |
3 |
3
|
|
| 2017-18 | Sheffield United | League Cup | 1 |
Please note: Career stats are based on performances in the Premier and Football Leagues and (in most cases all) internationals.
Club matches
| Date | Match | Result | Competition | Round | |
|---|---|---|---|---|---|
| 06 Aug 2016 | Bolton Wanderers v Sheffield United | L | 1-0 | League One | |
| 09 Aug 2016 | Sheffield United v Crewe Alexandra | L | 1-2 | League Cup | 1st round |
| 13 Aug 2016 | Sheffield United v Rochdale | D | 1-1 | League One | |
| 16 Aug 2016 | Sheffield United v Southend United | L | 0-3 | League One | |
| 20 Aug 2016 | Millwall v Sheffield United | L | 2-1 | League One | |
| 27 Aug 2016 | Sheffield United v Oxford United | W | 2-1 | League One | |
| 30 Aug 2016 | Sheffield United v Leicester City | D | 0-0 | Football League Trophy | Group H – North |
| 04 Sep 2016 | Gillingham v Sheffield United | W | 1-2 | League One | |
| 10 Sep 2016 | AFC Wimbledon v Sheffield United | W | 2-3 | League One | |
| 17 Sep 2016 | Sheffield United v Peterborough United | W | 1-0 | League One | |
| 24 Sep 2016 | Scunthorpe United v Sheffield United | D | 2-2 | League One | |
| 27 Sep 2016 | Sheffield United v Bristol Rovers | W | 1-0 | League One | |
| 01 Oct 2016 | Fleetwood Town v Sheffield United | D | 1-1 | League One | |
| 04 Oct 2016 | Sheffield United v Walsall | L | 1-2 | Football League Trophy | Group H – North |
| 15 Oct 2016 | Sheffield United v Port Vale | W | 4-0 | League One | |
| 18 Oct 2016 | Shrewsbury Town v Sheffield United | W | 0-3 | League One | |
| 22 Oct 2016 | Bradford City v Sheffield United | D | 3-3 | League One | |
| 29 Oct 2016 | Sheffield United v Milton Keynes Dons | W | 2-1 | League One | |
| 06 Nov 2016 | Sheffield United v Leyton Orient | W | 6-0 | FA Cup | 1st round |
| 13 Nov 2016 | Chesterfield v Sheffield United | W | 1-4 | League One | |
| 19 Nov 2016 | Sheffield United v Shrewsbury Town | W | 2-1 | League One | |
| 26 Nov 2016 | Charlton Athletic v Sheffield United | D | 1-1 | League One | |
| 29 Nov 2016 | Sheffield United v Walsall | L | 0-1 | League One | |
| 04 Dec 2016 | Bolton Wanderers v Sheffield United | L | 3-2 | FA Cup | 2nd round |
| 10 Dec 2016 | Sheffield United v Swindon Town | W | 4-0 | League One | |
| 15 Dec 2016 | Coventry City v Sheffield United | W | 1-2 | League One | |
| 26 Dec 2016 | Sheffield United v Oldham Athletic | W | 2-0 | League One | |
| 31 Dec 2016 | Sheffield United v Northampton Town | W | 1-0 | League One | |
| 02 Jan 2017 | Bury v Sheffield United | W | 1-3 | League One | |
| 07 Jan 2017 | Southend United v Sheffield United | W | 2-4 | League One | |
| 14 Jan 2017 | Walsall v Sheffield United | L | 4-1 | League One | |
| 21 Jan 2017 | Sheffield United v Gillingham | D | 2-2 | League One | |
| 24 Jan 2017 | Sheffield United v Fleetwood Town | L | 0-2 | League One | |
| 04 Feb 2017 | Sheffield United v AFC Wimbledon | W | 4-0 | League One | |
| 11 Feb 2017 | Peterborough United v Sheffield United | W | 0-1 | League One | |
| 18 Feb 2017 | Sheffield United v Scunthorpe United | D | 1-1 | League One | |
| 25 Feb 2017 | Sheffield United v Bolton Wanderers | W | 2-0 | League One | |
| 04 Mar 2017 | Rochdale v Sheffield United | D | 3-3 | League One | |
| 18 Mar 2017 | Sheffield United v Charlton Athletic | W | 2-1 | League One | |
| 28 Mar 2017 | Sheffield United v Millwall | W | 2-0 | League One | |
| 05 Apr 2017 | Sheffield United v Coventry City | W | 2-0 | League One | |
| 17 Apr 2017 | Sheffield United v Bradford City | W | 3-0 | League One | |
| 22 Apr 2017 | Milton Keynes Dons v Sheffield United | W | 0-3 | League One | |
| 30 Apr 2017 | Sheffield United v Chesterfield | W | 3-2 | League One | |
| 09 Aug 2017 | Sheffield United v Walsall | W | 3-2 | League Cup | 1st round |
| 12 Aug 2017 | Middlesbrough v Sheffield United | L | 1-0 | League Championship | |
| 19 Aug 2017 | Sheffield United v Barnsley | W | 1-0 | League Championship | |
| 26 Aug 2017 | Sheffield United v Derby County | W | 3-1 | League Championship | |
| 09 Sep 2017 | Sunderland v Sheffield United | W | 1-2 | League Championship | |
| 12 Sep 2017 | Bolton Wanderers v Sheffield United | W | 0-1 | League Championship | |
| 16 Sep 2017 | Sheffield United v Norwich City | L | 0-1 | League Championship | |
| 24 Sep 2017 | Sheffield Wednesday v Sheffield United | W | 2-4 | League Championship | |
| 27 Sep 2017 | Sheffield United v Wolverhampton Wanderers | W | 2-0 | League Championship | |
| 30 Sep 2017 | Nottingham Forest v Sheffield United | L | 2-1 | League Championship | |
| 14 Oct 2017 | Sheffield United v Ipswich Town | W | 1-0 | League Championship | |
| 21 Oct 2017 | Sheffield United v Reading | W | 2-1 | League Championship | |
| 27 Oct 2017 | Leeds United v Sheffield United | W | 1-2 | League Championship | |
| 31 Oct 2017 | Queens Park Rangers v Sheffield United | L | 1-0 | League Championship | |
| 04 Nov 2017 | Sheffield United v Hull City | W | 4-1 | League Championship | |
| 17 Nov 2017 | Burton Albion v Sheffield United | W | 1-3 | League Championship | |
| 21 Nov 2017 | Sheffield United v Fulham | L | 4-5 | League Championship | |
| 25 Nov 2017 | Sheffield United v Birmingham City | D | 1-1 | League Championship | |
| 02 Dec 2017 | Millwall v Sheffield United | L | 3-1 | League Championship | |
| 08 Dec 2017 | Sheffield United v Bristol City | L | 1-2 | League Championship | |
| 23 Dec 2017 | Aston Villa v Sheffield United | D | 2-2 | League Championship | |
| 26 Dec 2017 | Sheffield United v Sunderland | W | 3-0 | League Championship | |
| 30 Dec 2017 | Sheffield United v Bolton Wanderers | L | 0-1 | League Championship | |
| 01 Jan 2018 | Derby County v Sheffield United | D | 1-1 | League Championship | |
| 12 Jan 2018 | Sheffield United v Sheffield Wednesday | D | 0-0 | League Championship | |
| 27 Jan 2018 | Sheffield United v Preston North End | W | 1-0 | FA Cup | 4th round |
| 10 Feb 2018 | Sheffield United v Leeds United | W | 2-1 | League Championship | |
| 16 Feb 2018 | Leicester City v Sheffield United | L | 1-0 | FA Cup | 5th round |
| 20 Feb 2018 | Sheffield United v Queens Park Rangers | W | 2-1 | League Championship | |
| 23 Feb 2018 | Hull City v Sheffield United | L | 1-0 | League Championship | |
| 27 Feb 2018 | Reading v Sheffield United | W | 1-3 | League Championship | |
| 06 Mar 2018 | Fulham v Sheffield United | L | 3-0 | League Championship | |
| 13 Mar 2018 | Sheffield United v Burton Albion | W | 2-0 | League Championship | |
| 17 Mar 2018 | Sheffield United v Nottingham Forest | D | 0-0 | League Championship | |
| 07 Apr 2018 | Barnsley v Sheffield United | L | 3-2 | League Championship | |
| 10 Apr 2018 | Sheffield United v Middlesbrough | W | 2-1 | League Championship | |
| 14 Apr 2018 | Sheffield United v Millwall | D | 1-1 | League Championship | |
| 21 Apr 2018 | Birmingham City v Sheffield United | L | 2-1 | League Championship | |
| 28 Apr 2018 | Sheffield United v Preston North End | L | 0-1 | League Championship | |
Please note: Match history is complete for the Premier and Football Leagues and (in most cases all) internationals.