Manchester City defender Kolo Toure hopes to return a new player after completing his ban for failing a drugs test.
The Ivory Coast international is now eligible to play for City again after an enforced six months on the sidelines.
Toure, 30, missed the final three months of last season, including City's FA Cup triumph, after taking a diet pill which contained a prohibited substance.
Toure told City TV: "I feel totally recharged and as fit as I've ever been in my life.
"Hopefully, it will be like having a new signing because I am back and want to challenge for a first-team place.
"I know it won't be easy because the team is playing so well, but I'll be pushing hard for an opportunity.
"I'm just so happy to be back and I will give everything I have to the team, this club and our fans. I can't wait to get going!"
Toure could potentially return to the City side for next week's Barclays Premier League clash against Wigan, although he faces tough competition from the likes of Vincent Kompany, Joleon Lescott and Stefan Savic.
Toure thought the pill he took was approved and news that he had failed a test came as a shock.
"I remember it clearly," he added. "I was at home in my bedroom when the club doctor and [manager] Roberto Mancini came in to explain what had happened.
"It was a shock to see them there and I immediately realised the implications for my career, the club and my family.
"It was an awful moment because I didn't know what was going to happen."
Toure has thanked the club, fans and his brother and team-mate Yaya Toure for their support throughout his suspension.
The former Arsenal player said: "Yaya has been incredible and, as brothers, this has brought us even closer. He was always there for me and kept me informed of what was happening at the club.
"I must also thank the manager, my team-mates, the staff and particularly [chief executive] Garry Cook and our chairman Khaldoon Al-Mubarak for standing by me and helping me through this period.
"It's at times like this you know who your friends are and I'd also like to thank people like [Arsenal manager] Arsene Wenger, too.
"And I will try and repay our amazing supporters for all their good wishes, kind words and support."