Keïta was involved in a melee which ensued on 19 October in the 2011 AFC Champions League semi final first-leg between Suwon Samsung Bluewings and Al Sadd. Suwon player Choi Sung-Hwan was inadvertently kicked in the head by an Al Sadd defender, and Suwon's Yeom Ki-hoon let the ball out after Choi Sung-hwan went down with a head injury inside Al Sadd's box. While Choi was being tended to by medics, Keïta took the free kick quickly, and passed it to teammate Mamadou Niang unknowingly to the Suwon defense who thought possession would be returned to them according to FIFA fair play rules. Niang sprinted down the center half past the goalkeeper to score a second goal for Al Sadd. The chaos was further elevated when a Suwon fan ran onto the pitch, causing a brawl to erupt between the two teams. Afterwards, Keïta received a red card, allegedly for running towards the fan, slapping him in the back of the head and grabbing him by his throat. His teammate Lee Jung-Soo had told the press that Keïta had apologized for assisting Niang in scoring the goal, and admitted it was wrong. Al Sadd's coach, Jorge Fossati, suggested that Al Sadd was annoyed that Suwon had not immediately put the ball out of play, and decided to take actions into their own hands. Keïta was later suspended by AFC for the return leg.