Former EFL footballer Kiernan Hughes-Mason has been found guilty of child cruelty and grievous bodily harm after inflicting life-changing brain injuries on a two-year-old girl.
The 32-year-old left his victim needing round-the-clock care following the attack in Westcliff-on-Sea in Essex back in 2020.
He will be sentenced on September 10 at Basildon Crown Court.
Hughes-Mason played for Arsenal and Tottenham Hotspur during his youth career before featuring twice for Millwall's first-team between 2009 and 2010.
He later played non-League football for a host of clubs, including Grimsby, Welling, Kettering, Maidstone, Leatherhead, Grays and Barking.
A former EFL footballer has been found guilty of child cruelty and grievous bodily harm
Hughes-Mason began his managerial career last year with Tower Hamlets. He was managing Enfield Borough before being sacked following Wednesday's conviction.
A statement issued by club chairman Marvin Walker on Wednesday evening read: 'Effective immediately, Enfield Borough FC has decided to relieve Kiernan Mason-Hughes from his duties as manager.
'This decision comes in light of recent revelations regarding serious legal matters from Mr. Mason-Hughes' past, which were not disclosed during the hiring process.
'Enfield Borough FC is committed to maintaining the highest standards of integrity and accountability, and we believe that this action is necessary to uphold these values.
'We appreciate the understanding and continued support of our fans and community during this time. No further statement will be made.'
This club statement was issued by Enfield Borough FC after Hughes-Mason was convicted
Hashtag United - where Hughes-Mason played and coached between 2020 and 2022 - also issued a statement on Wednesday night.
It read: 'This evening the club has been made aware of some deeply shocking news regarding one of our former players and reserve team manager, Kiernan Hughes-Mason, who has been found guilty of crimes that are frankly sickening. Firstly, everyone associated with the club would like to offer our deepest sympathy to the victim and their family. We can't possibly imagine what they have been going through since these horrific events took place.
'We can categorically say that the club had no knowledge whatsoever of these events until today. We are told that the crimes he has now been found guilty of occurred before he joined us. Some serious flaws have been exposed in procedures as we'd received confirmation from the relevant authorities that he was clear to coach as part of standard background checks.
'Our club has an absolute zero tolerance policy on behaviour even closely relating to this. Our values are centered around positivity, inclusivity and above all else, creating a safe place for all.
'We reiterate our heartfelt sympathy for what the victim and their family have had to go through and would like to remind anyone reading this of some resources that are available should you need them: Childline: 0800 1111, National Domestic Abuse Helpline: 0808 2000 247'.
Hashtag United also issued a club statement following news of Hughes-Mason's conviction
Hughes-Mason called 999 and asked for an ambulance on January 31 in 2020 when he was supposed to be taking care of his ex-partner's daughter.
After paramedics arrived, he initially claimed that he had been downstairs when he heard a loud noise from upstairs and that he believed that the young girl had fallen on a doll's house.
The girl was placed in an induced coma and doctors discovered 17 different injuries to her legs, back, face and chest.
It is believed that these injuries were all sustained between October 2019 and January 2020.
Hughes-Mason was arrested on February 14 in 2020.
While investigating, police officers found messages sent by Hughes-Mason in which he said: 'She's actually getting on my nerves' and 'I'm gonna hit her'.
The prosecution barrister said in their closing speeches: 'The experts are all unanimously of the view that the child's devastating head and brain injuries could not have been caused accidentally while she was alone in her room.
'Hughes-Mason was keen from the outset to portray himself to the police as the doting stepfather who treated the children as his own, saying how much he loved them.
'Yet in his text messages written at the time, he constantly referred to them as "your children", or "your child" to the child's mother. He regularly belittled them, talked about them as if they were stupid and put them down.
'In respect of the head and brain injury that the child suffered… the experts all agree that the pattern of injuries found is consistent with the child having been vigorously shaken… with her head likely being hit against a hard surface.
'The only explanation for the pattern of injuries suffered by the child was that they were inflicted by this defendant and inflicted deliberately.'
A statement from the victim's family read: 'We finally have a verdict and that man is now held accountable for what he did to our little girl.
'We have had to go through what no family should ever have to experience, and our girl is going to bear the consequences of what he has done to her for the rest of her life'.