In terms of wealth, Johnston has generated a significant income from his professional football career. In addition to his salary and bonuses from playing for Tottenham Hotspur, he also earns money from sponsorship deals and endorsements.
In terms of wealth, Johnston has generated a significant income from his professional football career. In addition to his salary and bonuses from playing for Tottenham Hotspur, he also earns money from sponsorship deals and endorsements.