West Bromwich Albion boss Tony Pulis has shrugged off Saido Berahino's laughing gas claims.
A picture of Berahino allegedly inhaling nitrous oxide emerged this week, while Liverpool's Raheem Sterling and Villa's Jack Grealish have also been photographed with the legal high.
Pulis replied: "You would have to explain to me what they are doing because I haven't got a clue.
"It looks like some balloon or something.
"That picture was a year ago. He has been fantastic since I came into the club."
