British-born Greek defender George Baldock has died aged 31

The body of British-born Panathinaikos and Greek defender George Baldock was found in a swimming pool at his home in the southern Athens suburb of Glyfada on Wednesday, police sources said.

The cause of death remained unknown.

Police attempted cardiopulmonary resuscitation on the 31-year-old former Premier League player but were unable to revive him, a police official said.

The time of death was given as 10 p.m. (1900 GMT).

Baldock, who was of Greek descent and won 12 caps, moved to Panathinaikos from Sheffield United in May after the English side were relegated from the top flight.

He also played for lower leagues MK Dons and Oxford United.

Sheffield United said it was shocked and extremely saddened by the death of a popular player who spent seven years at Bramall Lane, and other English clubs expressed their condolences.

Baldock played four games for Panathinaikos, including a 0-0 draw with local rivals Olympiakos at the weekend, but was not named in Greece's Nations League squad for a game against England at Wembley on Thursday.

England and Manchester United defender Harry Maguire, a former Sheffield United player, posted a photo of Baldock on Instagram with a broken heart emoji and RIP.

“It is with deep sadness and pain that the national team and the Greek Football Association say goodbye to George Baldock,” the Greek team said on Facebook.

“There are no words to describe the human pain caused by the news of the untimely loss of one of our young people. The moment requires silence. Condolences to his family. Condolences to his second family. Goodbye.”