http://www.guardian.co.uk/football/2010/oct/29/manchester-city-drining-roberto-mancini
Key points from the article.
Mancini admitted being "unhappy" to discover that Joe Hart, Adam Johnson, Gareth Barry and Shay Given had apparently been drinking into the early hours of Tuesday at a student's house party in St Andrews. A video of the players, who had been on a golfing trip, was subsequently sold to the Sun and, though Mancini has chosen not to watch it, he has been informed that the players look drunk and, surrounded by teenagers cheering them on, are filmed drinking directly from a liqueur bottle.