Jackson has sharply criticised former Chelsea midfielder Mikel Obi, telling him to "shut your mouth" and using unprintable language in a heated Instagram post following Chelsea's 6-2 win over Wolves. The Chelsea forward, who scored just 98 seconds into the match, expressed his frustration with Obi after the Nigerian's critical comments about him. Jackson wrote, "Shut your mouth. Don't talk sh**, we are killing ourselves for Africa," adding heart, football, and world emojis, and tagging Mikel. This response comes after Obi, who won multiple trophies including the Champions League with Chelsea, had criticised Jackson's performance following Chelsea's 2-0 defeat to Manchester City.