The mayor was gifted two tickets, worth £275 each, by the FA declaring them in the City Hall register of gifts saying they were accepted due to a 'stakeholder engagement'.
Sadiq Khan's Taylor Swift controversy has escalated as it emerged the events firm that gave him tickets to her gigs has received £45million of City Hall contracts. in just three years.
The City Hall watchdog is to examine whether the London mayor 'exercised an appropriate level of caution' when he accepted six tickets worth £500 each.