Cape Town - Super Eagles and Chelsea wide player Victor Moses says the work he has put in at training is behind his outstanding form this season.
After having endured three loan spells away from Chelsea, Moses has been one of the Blue's most important players this season.
He has thrived in the new wing-back role which new coach Antonio Conte has handed him.
"I'm feeling stronger and I've been playing the best football of my career," Moses said in an interview in the club's match-day program.
"I'm enjoying my football and I think that's related to my fitness.
"I'm a lot fitter now than ever, so I just want to keep that going. We've got coaches here who are willing to help us, regarding the fitness side and it's going well.
"You've got to keep on going up and down the wing for the whole game in that wing-back role, so you obviously need a lot of stamina to do that and I think I've got that."
The 26-year-old former Wigan and Crystal Palace has been credited by some as one of the main reasons for Chelsea's blistering form, yet says he's still finding his feet as a defender.
"I've never dreamed of playing in this position in my life, but I'm enjoying it and I think it's probably one of the best positions to be honest. The more games I'm playing there, the more I'm improving," he added.
"I've never played this formation before but I'm getting used to it and I feel I'm getting better and better with every game.
"Last year was one of the best in my career and I'm delighted with that and it's thanks to the manager who gave me the opportunity to go out there and express myself," he concluded.