JERMAIN DEFOE has announced his retirement from football, bringing an end to a career that has spanned more than two decades.

As revealed in today's Northern Echo, the Sunderland striker has been considering calling time on his playing career for a few days, with his lack of involvement in the Black Cats' first team since rejoining the club in January understood to have been the key factor in his decision.

Defoe has continued to train with Sunderland this week, but having discussed his position with Black Cats head coach Alex Neil and members of the club's hierarchy, the 39-year-old striker has now decided to hang up his boots.

A statement issued by Defoe said: "After 22 years in the game, I have decided to retire from professional football. It's been a really tough decision, and one I have discussed with my family and those closest to me.

"I made my professional debut at 17 years old in 1999, and I feel now is the right time to bow out. I had had an incredible journey, and have met some amazing people in the game.

"Football will always remain in my blood, and it gives me great pride and satisfaction to look back on the blessed career that I've had. I now look forward to spending some quality time with my friends and family before moving forward on this next chapter in my career.

"Thanks you to all the fans from each club I've played for. The love I have received and endured throughout my career will never be forgotten, and I will always have a special bond with you all.

"Thank you also to my amazing team-mates, coaches and staff for playing such an integral part in my career.

"Lastly, I want to say thank you to my mum. You gave me a ball at two years old, and you made me believe my dream could happen. All that I am is because of you, and I owe everything to you and God."

Defoe bows out having scored 304 goals for nine different clubs during his professional career.

He rejoined Sunderland seven weeks ago, having been released from his previous deal at Rangers, but has managed just two starts during his second spell with the Black Cats.

Speaking specifcially about his second spell as a Sunderland player, Defoe added: "Returning to the Stadium of Light was truly special and playing in front of the Sunderland supporters one last time is something that I will cherish forever, so my gratitude is with Kyril (Louis-Dreyfus) and the many others that made it happen.

"I’ve seen first hand that the club is rebuilding in the right ways and I’ve experienced a talented group of players improving every single day – there is so much potential within the squad and I firmly believe that Alex (Neil) and the boys will go on to earn promotion this season.

"I look forward to supporting them from afar, as I look ahead to a new chapter on a different career path."