O'Sullivan begins title defence against Campbell
Ronnie O'Sullivan will begin the defence of his World Championship crown against Marcus Campbell in the first round at the Crucible.
The Rocket announced in February he would be making a return to the sport following a self-imposed sabbatical after clinching his fourth triumph last May.
O'Sullivan has played one match this season - in a Players Tour Championship event - but his appearance in Sheffield will be the 37-year-old's first in a major tournament. His opponent Campbell reached the semi-finals of the Wuxi Classic in China earlier in the campaign and is 27th in the world rankings.
World No. 1 Mark Selby, the current Masters and UK champion, bids for a maiden world crown when he faces Matthew Selt. Four-time Crucible champion John Higgins is up against Mark Davis - the player who knocked the Scot out of this season's UK Championship.
Neil Robertson, the 2010 winner, has been drawn against Robert Milkins - the conqueror of six-time runner-up Jimmy White in the qualifiers.
Former world champions Peter Ebdon and Graeme Dott will re-enact the 2006 final, while finalist of 2011 Judd Trump takes on Welshman Dominic Dale.
Draw in full:
Ronnie O'Sullivan v Marcus Campbell Ali Carter v Ben Woollaston
Stuart Bingham v Sam Baird John Higgins v Mark Davis
Shaun Murphy v Martin Gould Graeme Dott v Peter Ebdon
Matthew Stevens v Marco Fu Judd Trump v Dominic Dale
Neil Robertson v Robert Milkins Ricky Walden v Michael Holt
Mark Williams v Michael White Stephen Maguire v Dechewat Poomjaeng
Mark Allen v Mark King Ding Junhui v Alan McManus
Barry Hawkins v Jack Lisowski Mark Selby v Matthew Selt