Of all the great athletes to walk through the doors of Queen's Club, few have swung a racquet more successfully than Nicol David.
David won her first world title in 2005, became world number one in 2006 and has dominated ever since, never more so than in 2008 when she remained unbeaten in winning all 10 tournaments she played.
At 5ft 4in and ever smiling, she might not appear on first meeting to be the cruel type, but David is a relentless and ruthless character on court and continues to set the pace off it.
Former world number two and, in David's words, "squash legend" Liz Irving takes coaching duties, while numerous physical trainers and physios and a sports psychologist help out both at her base in Amsterdam and around the world.
I think Nicol is the biggest star in the sport, hands down. No-one can rival what she's got in Malaysia - you come in from the airport and there are huge billboards with her on them. She's the only squash player like that really. She's won seven world titles and I just marvel at her ability to stay so humble and never show any sign that her motivation is weakening. She just strives to get better and better and better, and there's never any hint of something for the other girls to see as a chink in the armour. There isn't one shot, it's just sustained pressure and she moves so gracefully. The main thing about Nicol for me is the hunger that she has to still do it."Nick Matthew, two-time world champion