Jose Manuel Puertas collects profiles of complicated players in European basketball in his book, highlighting how these characters can transform team dynamics.

• The 'bad boys' are players with personality, talent, and the ability to identify weaknesses in opponents.
• Their energy and magnetism that attract public passion increase when they play at home, while they can provoke frustration in rivals.
• The history of these players shows how they try to give their best performance and relieve pressure on their teammates.