By World Snooker Tour

Stephen Maguire has withdrawn from this week's World Grand Prix for medical reasons. 

Maguire was due to face Shaun Murphy in the opening round on Tuesday. Instead he will be replaced by the next player in line, Ben Woollaston, who will now take on Murphy.

The tournament features the leading 32 players of the season so far and will run from March 4th to 9th, staged in Hong Kong for the first time.