Coronation Street star Simon Gregson has reportedly been given a warning to clean up his antics by his soap bosses. It comes after he was said to be involved in a drunken brawl last week. The I'm A Celeb star, who plays one of the soap's longest-serving characters Steve McDonald, was allegedly called in by bosses to discuss his behaviour at a Toby Carvery, which is being investigated by Merseyside Police.