 On 10 December 2009, Manchester City announced that Johnson had suffered a serious knee injury in training which ruled him out of action until the end of the season.On 27 July 2011, Johnson signed a season-long loan deal with Leicester City, managed by former Manchester City manager Sven-Göran Eriksson.However, his loan spell ended prematurely, in January 2012, when he sustained an injury, after making only nine appearances for the club.