 Complete the following phrase:  Inzaghi was able to fully recover from persistent knee injuries that had dogged him for two years to the extent that he regained his predatory goalscoring form by scoring 12 goals in 22 Serie A matches in 200506, along with four goals in five Champions League appearances; two against Olympique Lyonnais in the quarter-finals and another two against Bayern Munich in the first knockout stage. He scored the decisive goal against the Bavarians in the 2007 quarter-finals, helping Milan to reach the semi-finals of the competition. On 23 May 2007, in the 2007 Champions League final in Athens, he scored both of Milans goals in their 21 victory over Liverpool in a rematch of the 