While playing against Norwich City on 27 August 2011, Drogba suffered a concussion in a collision with Norwich goalkeeper John Ruddy.
After missing two games, Drogba made his return to the Chelsea squad on 24 September against Swansea City.
Drogba went on scoring his first goal of the season in a 4–1 win.
Drogba received a red card on 23 October against Queens Park Rangers, Chelsea ended up losing 1–0.
On 29 November, Drogba rejected a new deal with Chelsea and was set to sign for the highest bidder.
On 31 December 2011, Drogba scored his 150th goal for Chelsea against Aston Villa, putting him level with Peter Osgood and Roy Bentley in terms of the club's top scorers of all time.
Even though, Chelsea was leading with the penalty scored by Drobga, the game ended in a 3–1 loss for Chelsea.

Drogba scored his 99th Premier League goal for Chelsea on 25 February 2012, in a 3–0 win over Bolton Wanderers.
Drogba scored his 100th Premier League goal for Chelsea on 10 March 2012, in a 1–0 win over Stoke City.
He is the first African player to reach that landmark.

Drogba scored his seventh goal at Wembley Stadium against London rivals Tottenham Hotspur on 15 April, blasting the ball past former teammate Carlo Cudicini as Chelsea became 5–1 winners and secured a place in the FA Cup Final against Liverpool.
Three days later, he scored a vital goal as Chelsea beat Barcelona 1–0 at Stamford Bridge in the first leg of their UEFA Champions League Semi-final clash.
Drogba became the first player to score in four different FA Cup Finals, as he netted the winner in Chelsea's 2–1 triumph over Liverpool on 5 May. Drogba also holds the record for most goals scored at the new Wembley Stadium with eight.

In the Champions League final on 19 May 2012, Drogba scored the equaliser from Juan Mata's corner in the 88th minute, taking Chelsea into extra time and then penalties.
He also scored the winning penalty in the 4–3 penalty shootout that led Chelsea to the victory over Bayern Munich.
Sir Alex Ferguson remarked: "As far as I was concerned, he [Drogba] won the Champions League for Chelsea."
Drogba's headed effort marked his ninth goal in nine cup final appearances for Chelsea, Chelsea legend Gianfranco Zola spoke after the match about Drogba's ability in big games: "In all their very important matches he has put a stamp on it."
In November 2012 Drogba was named Chelsea's greatest ever player in a poll of 20,000 fans conducted by Chelsea Magazine.
While playing against Norwich City on 27 August 2011, Drogba suffered a concussion in a collision with Norwich goalkeeper John Ruddy. After missing two games, Drogba made his return to the Chelsea squad on 24 September against Swansea City. Drogba went on scoring his first goal of the season in a 4–1 win. Drogba received a red card on 23 October against Queens Park Rangers, Chelsea ended up losing 1–0. On 29 November, Drogba rejected a new deal with Chelsea and was set to sign for the highest bidder. On 31 December 2011, Drogba scored his 150th goal for Chelsea against Aston Villa, putting him level with Peter Osgood and Roy Bentley in terms of the club's top scorers of all time. Even though, Chelsea was leading with the penalty scored by Drobga, the game ended in a 3–1 loss for Chelsea.
Drogba scored his 99th Premier League goal for Chelsea on 25 February 2012, in a 3–0 win over Bolton Wanderers. Drogba scored his 100th Premier League goal for Chelsea on 10 March 2012, in a 1–0 win over Stoke City. He is the first African player to reach that landmark.
Drogba scored his seventh goal at Wembley Stadium against London rivals Tottenham Hotspur on 15 April, blasting the ball past former teammate Carlo Cudicini as Chelsea became 5–1 winners and secured a place in the FA Cup Final against Liverpool. Three days later, he scored a vital goal as Chelsea beat Barcelona 1–0 at Stamford Bridge in the first leg of their UEFA Champions League Semi-final clash. Drogba became the first player to score in four different FA Cup Finals, as he netted the winner in Chelsea's 2–1 triumph over Liverpool on 5 May. Drogba also holds the record for most goals scored at the new Wembley Stadium with eight.
In the Champions League final on 19 May 2012, Drogba scored the equaliser from Juan Mata's corner in the 88th minute, taking Chelsea into extra time and then penalties. He also scored the winning penalty in the 4–3 penalty shootout that led Chelsea to the victory over Bayern Munich. Sir Alex Ferguson remarked: "As far as I was concerned, he [Drogba] won the Champions League for Chelsea." Drogba's headed effort marked his ninth goal in nine cup final appearances for Chelsea, Chelsea legend Gianfranco Zola spoke after the match about Drogba's ability in big games: "In all their very important matches he has put a stamp on it." In November 2012 Drogba was named Chelsea's greatest ever player in a poll of 20,000 fans conducted by Chelsea Magazine.
Didier Drogba