Sidibé snapped his achilles tendon against Tottenham Hotspur which ruled him out the rest of 2010. He returned to first team training in January 2011. He marked his return to the side by scoring in a reserve game against Burton Albion on 8 February. However two days later in a training session Sidibé again snapped his Achilles tendon ending his season. Sidibé admitted he broke down in tears when he snapped his right Achilles tendon for a second time in six months.