Originally Posted by
TropikThunder
Niko covers this but a short answer: you can train a player by himself and he will gain skill points (Dribbling, Shooting, Marking, etc) exactly the same as if he were in a group. The bonus you are talking about here is just the 4 team bonuses (Attack, Defense, Possession, Conditioning) that give a boost to those areas during a game (Possession bonus gives your whole midfield a boost). For those, you do need multiple players (4 defenders to train the Defense bonus, etc). If you do drills with 3 defenders, they will each gain whatever individual skills they get but you won't get the team bonus (2%, 4%, 6%, etc).