‘Crazy!’ – Kai Havertz shows off incredible body transformation as Arsenal fans are left stunned by new pic

ARSENAL fans have been left stunned by Kai Havertz’s incredible body transformation.

The German star returned for the final two games of the season after spending three months out with a hamstring injury.

InstagramKai Havertz appears to have undergone an incredible body transformation[/caption] InstagramThe German shared snaps of himself working hard at the gym[/caption] InstagramFans reckon he is bulking up ahead of next season[/caption]

And Havertz appears to have kept busy while sidelined by hitting the gym.