| Full Name: | Mark Duffy |
| Country: | England |
| League: | Football League 1 |
| Club: | Sheffield United |
| Height: | 175cm 5'9" |
| Weight: | 72 |
| Age: | 29 |
| Foot: | Right |
| Position: | Right Midfielder (RM) |
| Attacking Work Rate: | Medium |
| Defensive Work Rate: | Medium |
| Skill Moves: | 3 |
| Weak Foot: | 3 |
| Traits | |
| Specialities |
| ST | 57 |
| CF | 61 |
| LW/RW | 63 |
| CAM | 62 |
| LM/RM | 64 |
| CM | 58 |
| CDM | 48 |
| LWB/RWB | 51 |
| LB/RB | 47 |
| CB | 41 |
| GK | 16 |
PACE | 80 |
| Sprint Speed: | 77 |
| Acceleration: | 83 |
SHOOTING | 55 |
| Finishing: | 56 |
| Long Shots: | 56 |
| Shot Power: | 55 |
| Positioning: | 57 |
| Penalties: | 52 |
| Volleys: | 38 |
PASSING | 62 |
| Short Passing: | 62 |
| Vision: | 69 |
| Crossing: | 64 |
| Long Passing: | 53 |
| Curve: | 53 |
| FK Accuracy: | 52 |
DRIBBLING | 64 |
| Dribbling: | 63 |
| Ball Control: | 62 |
| Agility: | 75 |
| Balance: | 77 |
DEFENSE | 25 |
| Marking: | 14 |
| Standing Tackle: | 25 |
| Interceptions: | 38 |
| Heading: | 36 |
| Sliding Tackle: | 24 |
PHYSICAL | 70 |
| Strength: | 70 |
| Stamina: | 72 |
| Aggression: | 64 |
| Jumping: | 83 |
| Reactions: | 51 |