| Full Name: | Yong Deok Seo |
| Country: | Korea Republic |
| League: | K LEAGUE Classic |
| Club: | Ulsan Hyundai Horang-i |
| Height: | 175cm 5'9" |
| Weight: | 70 |
| Age: | 25 |
| Foot: | Right |
| Position: | Left Wing (LW) |
| Attacking Work Rate: | High |
| Defensive Work Rate: | Low |
| Skill Moves: | 3 |
| Weak Foot: | 4 |
| Traits | Shooting - Long Shot Taker |
| Specialities |
| ST | 59 |
| CF | 61 |
| LW/RW | 61 |
| CAM | 59 |
| LM/RM | 60 |
| CM | 53 |
| CDM | 43 |
| LWB/RWB | 47 |
| LB/RB | 44 |
| CB | 38 |
| GK | 16 |
PACE | 74 |
| Sprint Speed: | 74 |
| Acceleration: | 73 |
SHOOTING | 59 |
| Finishing: | 59 |
| Long Shots: | 56 |
| Shot Power: | 67 |
| Positioning: | 62 |
| Penalties: | 49 |
| Volleys: | 44 |
PASSING | 50 |
| Short Passing: | 56 |
| Vision: | 46 |
| Crossing: | 53 |
| Long Passing: | 47 |
| Curve: | 41 |
| FK Accuracy: | 35 |
DRIBBLING | 66 |
| Dribbling: | 68 |
| Ball Control: | 63 |
| Agility: | 72 |
| Balance: | 75 |
DEFENSE | 27 |
| Marking: | 25 |
| Standing Tackle: | 27 |
| Interceptions: | 25 |
| Heading: | 40 |
| Sliding Tackle: | 28 |
PHYSICAL | 56 |
| Strength: | 55 |
| Stamina: | 60 |
| Aggression: | 56 |
| Jumping: | 43 |
| Reactions: | 53 |