The 'green carpet' at the 2017 Betfred Snooker World Championships

To mark the 40th anniversary of the World Snooker Championships being held at the Crucible in Sheffield, the green carpet was rolled out to welcome players past and present to a special 40th Anniversary show at the theatre that has been 'home' to snooker since 1977.

 Ray Reardon and Terry Griffiths

 Dennis Taylor and Cliff Thorburn

 Ken Doherty and Steve Davis

 Stephen Hendry

 Ryan Day and Xiao Guodong

 Ryan Day

 Anthony McGill and Stephen Maguire

 Ronnie O'Sullivan and (in the background) Gary Wilson

 Jimmy Robertson and Mark Allen

 Ali Carter and Graeme Dott

Noppon Saengkham and Neil Robertson

 Luca Brecel (doing a good job of keeping Marco Fu hidden behind him)

 Barry Hawkins and Tom Ford

 John Higgins and Martin Gould

 Yan Bingtao and Shaun Murphy

 Zhou Yuelong and Ding Junhui

 A selfie with Ding Junhui

 Stuart Bingham and Peter Ebdon

 Judd Trump and Rory McLeod

 Mark Selby and Fergal O'Brien