- All injury reports
- 2009–10 season
On his return to the team from him first injury, On 28 February, he scored a brace in the first half at the San Siro, helping Milan beat Atalanta 3–1 but coming off halfway through the second half due to a hamstring injury. This injury forced him to miss two crucial trips to Roma and Manchester United. To conclude Pato's season, he injured the same muscle again shortly after returning and was forced to miss the rest of the season, playing only 20 games due to constant injuries.
- 2010–11 season
In the first match of the season against Lecce, he scored 2 goals in Milan's 4–0 win. However, he found himself injured just after his first 2 matches of the season which ruled him out for the next 3 matches. In his next full match after his injury, he scored twice against Chievo at the San Siro. He then scored once again against Bari in San Nicola. After a string of great performances, Pato injured his hamstring for the third time in less than a year. This injury ruled him out for six weeks.
- 2011–12 season
On September 13, in a Champions League group-stage match against Barcelona, Pato scored the 5th fastest goal in the competition's history, 24 seconds after kick-off.Later that month, he suffered a thigh injury during a 1–1 draw with Udinese.Pato made his return as a sub against Fiorentina and hit the post in the 79th minute in a 0-0 draw. In January 2012, Pato was on the brink of moving to the Ligue 1 side Paris Saint-Germain F.C.. This move would have given AC Milan the opportunity to make a bid for Carlos Tevez. However on the 12th January 2012 Pato refused the transfer citing his commitment for the rossoneri. During the Coppa Italia round of 16 victory over Novara, Pato picked up a muscle strain in his thigh, which tests revealed an injury of his biceps femoris of his left thigh.
The latest injury of pato that forced him to terminate the season was caused in the 69th minute of the away leg of their Champions League tie with Barcelona. It turned out to be a disastrous decision for the club and the Brazilian player when he was removed 14 minutes later with yet another muscular knock.