Two players from Northern Ireland take centre stage at the Crucible. World number 16 Mark Allen plays the last session of his match against qualifier Martin Gould, while Joe Swail starts his campaign against Hong Kong's Marco Fu.

Later in the coverage, 2007 runner-up Mark Selby will hope to book his place in round two.

Ray Stubbs is joined in the studio by six-times Crucible winner Steve Davis and 1991 champion John Parrott. Show less