26 October 2013 Last updated at 10:48

Matthew & Willstrop on the rivalry inspiring squash success

English squash duo Nick Matthew and James Willstrop are among the lead contenders for singles success at the Men's World Championships  in Manchester 26 October - 3 November.

However, the pair - who have exchanged the world number one ranking several times during the last few years - have a far from harmonious relationship and share a rivalry which has been described as comparable to that of Lord Sebastian Coe and Steve Ovett in the 1980s.

Willstrop, 30, is desperate to end a 15-game losing streak against Matthew, 33, who has won two previous world championship titles. They tell BBC Sport's Nick Hope about how their rivalry has inspired their respective success.

Men's World Squash Championships

  • Venue: Manchester Central
  • Thursday 31 October - Sunday, 3 November: Coverage on the BBC from the quarter-finals onwards. Thursday - live on connected TV and online from 19:00-22:00 GMT and delayed coverage on Red Button 21:30-00:30 GMT. Friday - live on connected TV and online from 19:00-22:00 GMT and delayed coverage on Red Button 22:00-01:00 GMT. Saturday - 16:00-20:00 GMT connected TV and online and delayed Red Button coverage 22:35-23:35 GMT. Sunday - 17:30-19:30 GMT Red Button and online - live coverage of the final.