- Effect of age on the winning team
- Does fifa game ratings reflects the real rating of the team?
- Left Attackers <=> Right Attackers?
- Remove time from db.player birthday || convert to age
- check player_fifa_api_id if needed?
- remove time from birthday
- Add age column to player
- Player_Attr: Remove players duplicates & Merge with player to get the name
- Player_Attr: remove all retired players and keep only 2016 players