Ronnie O’Sullivan leads Ali Carter as both struggle for their best at the Crucible

Ronnie O’Sullivan and Ali Carter are scrapping it out in Sheffield (Picture: Getty Images)Ronnie O’Sullivan has taken a 5-4 lead over Ali Carter in their first round clash at the World Snooker Championship, although neither could find their best form with any regularity at the Crucible.The Rocket was playing his first competitive match since January and is using a new cue, so it is perhaps not surprising that he looked rusty at times.The Captain won a couple of games to get through