Aston Villa youngster Jack Grealish, who shone during the club's FA Cup semi-final victory over Liverpool, has been pictured inhaling nitrous oxide from a balloon.
The legal high, informally known as "hippy crack", can give users a sense of relaxation, hallucination and euphoria, but has known to have dangerous and potentially life-threatening side effects, such as heart attacks, if taken regularly.
This revelation comes after a series of controversial images arose featuring Premier League players doing the very same thing.
Liverpool's Raheem Sterling and Jordon Ibe, as well as West Bromwich Albion striker Saido Berahino, have been snapped in the act too.
Coincidentally, heroic Villa manager Tim Sherwood was asked about Sterling's usage of the legal high and he opined: "I am not condoning it but he is a young man, isn’t he?"
19-year-old Solihull-born Grealish is currently deciding on whether to pledge his allegiance to England or the Republic of Ireland.
Villa have officially declined to comment on Grealish's controversial image, which has emerged a month and a week before the club's FA Cup final against an on-form Arsenal.
The teen star, teamed with goal machine Christian Benteke and midfield hero Fabian Delph formed an unstoppable attacking force against an under-performing Liverpool to reach this stage of the competition for the first time since 2000.
The club, however, are still not assured a place in next season's Premier League, with their bid for survival still a work-in-progress. The Midlands side face a tough league tie away at Manchester City on Saturday.