Saturday's Champions League final pits Zinedine Zidane, a rookie manager, against Diego Simeone, who has created the best-organised team in Europe.
Real Madrid have the superstars, but Atletico Madrid are a superior unit, which should make this a fascinating tactical battle. Here are five key areas where the final will be decided:
1. Real switching play
Atletico are compact not just vertically (from defence to attack) but also horizontally (from left to right). They encourage opposition teams to play passes towards the wings, before shutting them down quickly and efficiently, boxing in opponents towards the touchline.