Sakho began the
2011–12 season as the club's first-choice captain under Kombouaré. On 13 August 2011, in the club's second league match of the season, he suffered a
hamstring injury.
[33] Despite initially being ruled out for three weeks, Sakho missed two months and returned to the team in its 3–1 away win over
Ajaccio. He remained a fixture in the team for the rest of the autumn campaign as Paris Saint-Germain finished the first half of the league in first place position.
[34] In January 2012, Kombouaré resigned from his position. He was replaced by
Italian manager
Carlo Ancelotti. Under the helm of Ancelotti, Sakho retained the captaincy and appeared as a starter through March. However, after unconvincing performances in draws with Lyon,
Caen, and Bordeaux, which resulted in the club losing its grip on first place, the captain was benched by Ancelotti and stripped of the captaincy. Ancelotti based Sakho's benching on the increased competition in the squad as the Italian preferred the central duo of
Milan Biševac and
Alex.
[35][36][36] Sakho was also questioned by club director Leonardo for being "slightly overweight".
[37]