Diving World Series: Tom Daley 'fitter and stronger' than ever

Daley will take part in the World Championships in Kazan, Russia, this summer

Tom Daley says he is more motivated than ever to prove he can be the best diver in the world again.

The London Olympic bronze medallist won World Championship gold in 2009, but has not topped a World Series event since April 2013.

However, the Briton came an impressive second in Dubai earlier this month and contests the London leg of the World Series this weekend.

"I feel the fittest, strongest and most dedicated I ever have," said Daley.

"The new strength and conditioning programme is helping me jump higher and that makes the dives easier."

Daley, who competes on Sunday, continued: "I've changed my diet and even the amount that I sleep so my mind-set has changed because I know these next two years are so important."

Following his third-place finish at London 2012 Daley has experienced what he describes as a "rollercoaster" few years, with injuries, his relocation from Plymouth to London and making public that he is in a relationship with another man all providing challenges.

However, the diver admits he is now in a better place mentally - achieved in part by replacing what had become known as his 'demon dive', after the backwards 2.5 somersault with 2.5 twists in the piked position first gave him problems at London, with a new routine.

The 20-year-old debuted the 'front 3.5 somersault, and one twist' dive with mixed success at the British Championships in February, but hopes it can boost his prospects of success at future events.

"Being able to take away the old 'twister' dive is a real weight off my shoulders and it's taken the stress off knowing I can go into training and enjoy it again," Daley told BBC Sport.

"I'm already scoring more with the new routine than I was with the old one and it's certainly starting to feel more consistent."

This is a crucial season for British divers, who can secure their places at next year's Rio Olympics at this summer's World Championships in Kazan, Russia.

Following the London leg there are two further World Series competitions - in Canada and Mexico - before the Kazan Worlds.

Daley hopes a supportive home crowd in London can help him gain a confidence-boosting victory going into an important few months.

"I have so many amazing memories of this pool from London 2012 and even though I train here every day it's still so special," he says.

"To win in front of a home crowd and all of my friends and family would just mean so much."