Former Premier League footballer George Baldock has died at the age of 31.
The Greek defender was found on Wednesday in a swimming pool at his home in the southern Athens suburb of Glyfada, police sources told the Reuters news agency.
His cause of death remains unknown.
In a post on X, the Greek Super League said: “The entire Super League football family expresses its deep sorrow for the untimely loss of Panathinaikos and our National Team footballer, George Baldock, and extends its deepest condolences to his family and loved ones.”
Baldock spent seven years at Sheffield United, having arrived from MK Dons in 2017.
He amassed over 200 appearances in red and white before joining Greek side Panathinaikos earlier this year.
Also posting on social media, Sheffield United said the club is “shocked and extremely saddened” to learn of his death.
They said he was “extremely popular with supporters, staff and teammates” during his time at Bramall Lane.
England international and former Sheffield United player Harry Maguire posted “RIP” and a heartbreak emoji alongside an image of Baldock on Instagram.
While Northampton Town, where Baldock had a loan spell in 2011, said: “We are deeply saddened to learn of the passing of former loanee George Baldock at the tragically young age of 31.
“George made five appearances in 2011 before playing for Oxford United and Sheffield United. Sending our sincerest condolences to George’s family and friends.”
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Born in England, Baldock held Greek nationality and represented the country’s national team.
The full-back, who was not named in the Greece squad to face England on Thursday, featured in Sunday’s 0-0 draw with Olympiacos.
He also previously played for Oxford United and Tamworth.