London - Aston Villa's rising star Jack Grealish has been warned about his future conduct by manager Tim Sherwood after becoming the latest Premier League footballer to be pictured inhaling nitrous oxide or 'laughing gas'.
Pictures of Grealish, a key figure in Villa's 2-1 FA Cup semi-final win over Liverpool at Wembley last weekend, inhaling nitrous oxide from a balloon were published in the British national press on Thursday.
It has been reported the photographs were taken a year ago.