After a poor start of season, featuring a shock 0–4 loss to crosstown rivals Internazionale, that started speculation about his possible dismissal from the head coaching post at Milan, results started improving for the "rossoneri" under Leonardo, also thanks to the application of a 4–2–1–3 tactic (nicknamed also "4–2–fantasy" by Milan vice-president Adriano Galliani). This tactic, quite unusual in Italian football and greatly focusing on creative players such as Ronaldinho, Andrea Pirlo and Clarence Seedorf, led Milan to improved results at both Serie A and UEFA Champions League level, including a remarkable 3–2 win at the Santiago Bernabéu Stadium against Real Madrid and a 3–0 away win to Juventus which enabled Leonardo's side to finish in second place at the half-way point of the season, six points shy of leaders Inter with a game in hand. However, the path to the Champions League final was halted prematurely as Milan were eliminated in the first knockout round by Manchester United in a 2–7 aggregate loss (2–3, 0–4).