Jeremy Wisten killed himself on Monday due to depression, on the back of being released by the club.
The young defender joined City’s Elite Club at the U13 level in 2016.
“The Manchester City family are saddened to learn of the passing of former Academy player Jeremy Wisten,” the club said a statement on Twitter.
“We send our deepest condolences to his friends and family. Our thoughts are with you at this difficult time.”
Current City players Raheem Sterling and Aymeric Laporte responded to the club’s tweet, with French defender Laporte writing: “Horrible news… RIP young man.”
Cole Palmer and Tommy Doyle – who played alongside Wisten in City’s youth teams – also posted tributes to the defender.
“You Will Be Forever Missed,” Palmer wrote on Instagram alongside a series of pictures and videos of himself and Wisten. “Fly High My Brother Rest In Paradise!”
Wisten was born in Malawi but moved to England as an infant before joining City’s under-13 level in 2016.
Whereas, Man United academy player Reece Devine posted: “Thank you for all the memories brother. I can’t believe how you must have been feeling. I wish we could have helped.”
“You were always making everybody around you laugh and smile. Rest easy. Love you always. Remember to always speak up.”
A GoFundMe page has been set up to support Wisten’s family.